d4 Dice - Shape of Constant Width Reuleaux

This die can be used as an ordinary d4.

The 4-sided die is a shape of constant width (a.k.a. a Reuleaux tetrahedron.) This shape makes more fun to roll and more comfortable to hold. My D&D players tend fiddle with the die all while we play.
 

Tips:

• If resin printing, add as many supports as you can to reduce deformations. Some sanding may be needed otherwise.
• A magic eraser has been a great way to do the final polish step. Also helps remove some paint mistakes.