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Most “crypto gifts” are acrylic junk printed in bulk for people who cannot tell Bitcoin from Dogecoin. These bitcoin slate coasters are different. Designed by SpaceBull (MADEX), a respected figure in Bitcoin art and culture, and shipped by a real Bitcoiner from his shop in America.

Table of Contents

• What Are These Bitcoin Slate Coasters
• Why CryptoCloaks
• Specs and Details
• How It Compares
• FAQ

What Are MADEX Bitcoin Slate Coasters

These bitcoin slate coasters come as a set of two, each laser-etched on natural slate with messaging that goes beyond decoration. One coaster carries “Free Men Don’t Ask.” The other reads “Can’t Tread On Me.” Both phrases speak the language of the Bitcoin ethos: financial sovereignty, self-custody, and the rejection of permission-based living.

MADEX is the artistic identity of SpaceBull, a well-known creator in the Bitcoin community. This collab is not a licensing deal or a branding exercise. It is a genuine partnership between CryptoCloaks and an artist who lives the values these coasters represent. The result is a product with cultural weight behind it, not just a logo pressed onto stone.

Natural slate gives these coasters a texture and feel that acrylic and ceramic simply cannot match. The material is heavy, durable, and ages with character. Laser etching cuts into the stone cleanly, producing crisp, permanent designs that do not fade, peel, or smudge. These are objects built to last, for people who appreciate things built to last.

Why CryptoCloaks Makes Better Bitcoin Slate Coasters

CryptoCloaks has been in the Bitcoin space since 2017. Ricky, the founder, picks, prints, and ships every order himself from his shop in America. There is no warehouse, no drop-shipping, no anonymous third-party fulfillment center. When you order from CryptoCloaks, a real person who has been stacking sats for years handles your order personally.

The MADEX collab is one example of how CryptoCloaks approaches product development. Rather than mass-producing generic crypto gear, CryptoCloaks partners with artists who have standing in the Bitcoin community. SpaceBull’s work is recognized across Bitcoin Twitter and beyond. When his art goes on a product, it carries context and credibility. If you appreciate Bitcoin-native art done right, browse the Bitcoin Astronaut art print for another example of what that looks like.

Additionally, CryptoCloaks is Bitcoin-only. No altcoin merchandise, no multi-coin bundles, no hedging. That focus matters because every product on this site is built for Bitcoiners, by Bitcoiners. These bitcoin slate coasters reflect that commitment from the raw materials up through the messaging etched into them.

Specs and Details

• Material: Natural slate
• Quantity: Set of 2
• Etching Method: Laser etched
• Designs: “Free Men Don’t Ask” / “Can’t Tread On Me”
• Weight: 9 oz
• Dimensions: 7 x 5 x 1 in
• SKU: CC-BG-MADEBITCSLAT
• Price: $14.99 for the set
• Ships: 2-3 business days from America

The dimensions make these a solid fit for whiskey glasses, bourbon tumblers, pint glasses, and standard mugs. At 7 x 5 inches, there is room to spare. The 1-inch thickness adds stability and the 9-ounce weight keeps them in place on any surface. For more context on the artist behind the designs, visit MADEX SpaceBull Bitcoin art on Twitter.

How It Compares

Competitors on Amazon and eBay offer crypto-branded coasters, but they bundle Bitcoin with dozens of altcoins, use cheaper materials, and ship from anonymous fulfillment networks. These bitcoin slate coasters come from a Bitcoin-native brand with a named artist, a named founder, and a real shop. That difference is visible in the product and present in every phrase etched into it.

Frequently Asked Questions

What are the two designs laser-etched on the MADEX Bitcoin slate coasters?

Each set of bitcoin slate coasters includes two distinct designs. The first reads “Free Men Don’t Ask,” a phrase that captures the Bitcoin principle of operating without seeking permission from banks, governments, or intermediaries. The second reads “Can’t Tread On Me,” a riff on the iconic Gadsden flag sentiment, applied directly to Bitcoin’s role as a tool of financial resistance. Both designs are laser-etched into the natural slate surface, meaning the text is cut into the stone itself rather than applied on top. The result is permanent, sharp, and legible over time. These are not decorative phrases chosen for broad mass-market appeal. They are deliberate statements that reflect the libertarian values at the core of Bitcoin culture, selected in direct collaboration with SpaceBull, an artist who understands and lives those values.

Are these coasters suitable for whiskey and bourbon glasses?

These bitcoin slate coasters are well-suited for whiskey glasses, bourbon tumblers, and most standard drinking vessels. At 7 x 5 inches, they provide a generous surface area that accommodates wide-based glasses with room to spare. The 1-inch thickness creates a stable platform, and the 9-ounce weight keeps them in place on flat surfaces. Natural slate is also naturally heat and moisture resistant, which makes it practical for cold drinks that produce condensation and warm drinks that transfer heat to the surface. The texture is not polished smooth, so glasses sit with a natural grip that prevents sliding. Whether these sit on a home bar, a desk, or a coffee table, they perform as functional coasters while carrying the MADEX art and messaging that makes them worth keeping out in plain sight.

Who is SpaceBull (MADEX) and why did CryptoCloaks collaborate with him?

SpaceBull is the person behind the MADEX creative identity, a Bitcoin artist and cultural figure with a recognized presence in the Bitcoin community, particularly on Bitcoin Twitter. His work explores themes of sovereignty, space, and Bitcoin’s role in human freedom. CryptoCloaks pursued this collaboration because SpaceBull’s values align directly with what CryptoCloaks represents: a Bitcoin-native brand that does not dilute its products with altcoin messaging or mass-market aesthetics. The partnership produced bitcoin slate coasters that carry genuine artistic and ideological weight, not just a recognizable logo. For CryptoCloaks, artist collabs are not marketing tactics. They are partnerships with people who have credibility in the space. SpaceBull has that credibility. These coasters reflect his perspective on Bitcoin as a tool of individual freedom, expressed in two phrases that Bitcoiners will recognize immediately.

Order a set of MADEX bitcoin slate coasters today and put something meaningful on your desk, bar, or shelf. Bitcoin accepted. Made in America. Ships in 2-3 business days.

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S9 Bitcoin Space Heater Case: 3D Printed in America, Built to Heat Your Home

Your Antminer S9 is already dumping over 1,300 watts of heat into whatever room it sits in. The only question is whether that heat is working for you or just cooking your cables. The CryptoCloaks S9 bitcoin space heater case converts that industrial mining rig into a proper home heating unit, with heat-resistant PETG construction, custom color options no competitor can match, and a 30-page build guide that actually gets you there.

Table of Contents

• What Is the S9 Bitcoin Space Heater Case
• Why CryptoCloaks
• Specs and Compatibility
• How It Compares
• FAQ

What Is the S9 Bitcoin Space Heater Case

The S9 bitcoin space heater case is a custom 3D printed enclosure built specifically to transform an Antminer S9 into a functional residential space heater. Instead of raw industrial exhaust blasting uncontrolled into your room, this case manages airflow directionally, reduces acoustic harshness, and gives the whole unit a form factor that belongs in a home rather than a shipping container farm.

CryptoCloaks prints every case from PETG filament. PETG handles the sustained thermal load an S9 generates without warping, cracking, or off-gassing. The case includes two 140mm to 120mm fan adapters (v2) and four mounting screws for the S9 base mount. You also choose between a grill or solid top panel design depending on your airflow and aesthetic preference.

This is not a file you download and print yourself, hoping the tolerances land right. Ricky designs, prints, and ships every S9 bitcoin space heater case from his shop in America. Every unit is checked before it ships. The fit is precise, the hardware is included, and the documentation covers every step of the build.

Why CryptoCloaks Builds a Better S9 Bitcoin Space Heater Case

CryptoCloaks has been in the bitcoin hardware space since 2017. That history shows up in the product. The 30-page community build guide included with every S9 bitcoin space heater case is not a quick-start card. It is a document built from years of community feedback, Reddit threads, and real installs. Buyers know exactly what they are getting into before they crack open the S9, and they have a resource that answers the real questions, not just the obvious ones.

Color is where CryptoCloaks separates from every competitor. Standard options are Black, White, Orange, and Yellow. If none of those fit your setup, CryptoCloaks sources custom PETG rolls and prints the top, body, and base in whatever color combination you specify independently. No other seller in this space offers a real custom filament program at this price point. Generic cases come in one color. CryptoCloaks comes in yours.

If you still need to source an Antminer S9, the CryptoCloaks partnership with Kaboomracks makes that simple. The S9 Bitcoin Space Heater Bundle with miner included gives you everything in one order. No separate sourcing, no compatibility guesswork. If you already have a miner sitting around, skip the bundle and grab the case on its own.

Specs and Compatibility

Every S9 bitcoin space heater case ships ready to build. Here is exactly what you get:

• Compatible miner: Antminer S9
• Weight: 96 oz
• Dimensions: 20 × 12 × 12 in
• Fan adapters: 2 × 140mm to 120mm v2
• Mounting screws: 4 × fan screws for S9 base mount
• Top panel designs: Grill or Solid
• Standard colors: Black, White, Orange, Yellow
• Custom colors: Available via custom PETG roll sourcing (contact before ordering)
• Print material: PETG (heat-resistant, dimensionally stable)
• Processing time: Approximately 1 week before ship date
• Price: $149.99

This case fits the Antminer S9 specifically. It is not compatible with the S9i, S9j, S17, or S19 form factors. If you need a used S9 to pair with the case, you can buy a used Antminer S9 from Kaboom Racks, a reputable source for secondhand mining hardware. Reach out to CryptoCloaks if you have questions about board revision compatibility before you order.

How It Compares

Frequently Asked Questions

Can the S9 inside this case actually heat a room, and how many square feet will it cover?

Yes, it can. The Antminer S9 draws approximately 1,323 watts of power, and nearly all of that converts directly to heat output. That puts it on par with a mid-range electric space heater, which most manufacturers rate for rooms between 150 and 200 square feet. Your real-world coverage depends on insulation quality, ceiling height, ambient outdoor temperatures, and how well your room retains heat. The S9 bitcoin space heater case does not reduce the miner’s thermal output. It manages and directs airflow so the heat goes where you want it rather than radiating uncontrolled off the chassis. In a smaller, well-insulated room, you may need to crack a window even in winter. That is a good problem to have when your heater is also stacking sats.

Do I need to buy the Antminer S9 separately, or can I bundle it with the case?

Both options are available. The S9 bitcoin space heater case sells on its own for $149.99, and you source the miner independently. However, CryptoCloaks has a direct partnership with Kaboomracks, a reputable used mining hardware dealer, so you can bundle the case and the miner in a single transaction. The S9 Bitcoin Space Heater Bundle with miner included is the fastest path to a complete, working build. If you already own an S9 that is collecting dust or running in an unhoused setup, just order the case. If you are starting from scratch and need both, the bundle eliminates the separate sourcing step and the compatibility guesswork that comes with buying secondhand hardware on your own.

What custom color combinations are available, and how much does a custom PETG color add to the order?

Standard colors are Black, White, Orange, and Yellow, all available at the base price of $149.99. For custom colors, CryptoCloaks sources specific PETG rolls on a per-order basis. You can specify different colors for the top panel, the body, and the base independently, which opens up a wide range of two-tone and three-color combinations. Custom color pricing depends on filament sourcing costs and varies by request. Contact CryptoCloaks before placing your order to confirm what is in stock and what any additional cost would be. The S9 bitcoin space heater case stands apart from competitors here because custom color is a real, documented program, not a vague “contact us” footnote with no follow-through. Ricky sources the filament and prints your spec, not a generic approximation of it.

Ready to put that S9 to work heating your home? Order your S9 bitcoin space heater case today and Ricky will print and pack it personally. Bitcoin accepted. Made in America. Ships in 2-3 business days.

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