Mini Concrete Mafia Block Mold

This mini concrete block mold is designed to be printed in TPU (or another flexible filament).

Print the mold, then wrap the two halves together and seal the seam with electrical tape to prevent leaks. Clamp it in place, pour in a flowable concrete mix, and gently tap or vibrate the mold to release trapped air.

Let the concrete cure until firm, then peel or cut the flexible mold away to reveal the mini “mafia block.”