In this episode the vlogsmith Gil Ramirez forges a steel d20. There’s more skill to it than I imaged as Gil’s required to hammer each face of the die by hand. He’s keen of eye enough to do this without measurement or fancy tools either – though I doubt the die is as well balanced as a machine cut and weighted one would be.
There’s something cool about metal dice. I had a hunt around and this presentation case collection from Paladin Roleplaying is currently available from Amazon.