Ready to craft your own stunning, sharp-edged D20 dice in the size that best fits your vision? These high-quality silicone D20 molds (including spindown options) take the hassle out of DIY dice making, making them a favorite for beginners and experienced creators alike. Unleash your creativity and cast unique, personalized D20s – numbered or spindown – for TTRPG adventures, life counters, resource tracking, collectibles, or eye-catching display pieces.

This listing offers premium molds in three sizes, each available in both popular font styles and including perfectly sized blanks/geode blanks for endless customization:

• 20mm D20 (compact and classic – ideal for portability and everyday play) – Vanilla Extract font (elegant, clean numbering) – Berkshire Swash font (artistic flourish for sophisticated flair) – Includes matching 20mm blanks and geode blanks

• 30mm D20 (bold mid-size – enhanced visibility with a substantial feel) – Vanilla Extract font – Berkshire Swash font – Spindown version available – Includes matching 30mm blanks and geode blanks

• 40mm D20 (impressive oversized – dramatic presence and maximum impact) – Vanilla Extract font – Berkshire Swash font – Spindown version available – Includes matching 40mm blanks and geode blanks

All molds produce crisp, clean sharp-edged D20s with professional-quality finishes and the same cohesive font options across sizes and styles. Spindown layouts are perfect for MTG life tracking or any game needing sequential numbering.

Perfect for tabletop role-playing games like Dungeons & Dragons, Magic: The Gathering, Pathfinder, and many more – whether you want standard readability, stylish elegance, or oversized statement pieces.

Achieve pro-level results with every cast, in any size.

Experiment with a wide range of casting materials beyond just resin, including plaster, concrete, jesmonite, and even low-temperature metals.

The durable silicone construction allows for multiple castings, making these molds a cost-effective, reusable choice for avid dice makers.

Features

• Craft precise, sharp-edged D20 dice with these high-quality silicone molds that ensure durability and effortless use. 

• Versatile for various materials, including epoxy resin and jesmonite, allowing diverse and creative designs in any size. 

• Create professional D20s (numbered or spindown) that deliver a premium look and feel – with matching blanks/geode blanks for custom inlays and effects. 

• Enjoy easy cleanup and repeated reuse, offering excellent long-term value.

Warning

• Not suitable for children (especially smaller sizes due to potential choking hazard). 

• Keep away from fire. 

• Do not use for food or drink.

PLEASE NOTE: Dice masters shown are for illustrative purposes only. 
This listing is for the silicone mold(s) only.

• Wash: Use a tiny amount of dish soap and water.
  CRUCIAL: Ensure the mold is 100% dry before your next pour.
• Storage: Keep in a cool, dry place away from sunlight. Do not fold or bend the mold, as this can cause permanent distortion.
• Dust: Use packing or duct tape to lift away any leftover flashing or debris.

Click Here for my full care guide

• Handle with Care: Be very gentle around the face edges during unmolding to prevent tearing.
  Sharp bits of leftover resin can scar the silicone if not removed.
• Lifespan: Expect ~10 casts per mold with proper resin mixing and gentle handling.
• Mold Release: Using Mann Ease Release 200 can extend your mold's life - but it will change the finish from glassy to satin.
• Finishing: Even with minimal flashing, expect to sand and polish the 1-face and occasionally surrounding faces as the mold ages.

Wanna know when your new molds will arrive?

I've got all the details on processing times, international shipping & my return policies over on my FAQ page.