I present to you my D&D dice jewelry.
Critical Hit Ring:
I roughed up the loneliest number on the die, and super-glued it to an adjustable ring base.
Tri-Force Tie-Tac / Lapel Pin:
I roughed up one side, and super glued it to a pin blank. Done.
Caged Power Pendant:
An easy wire wrap that you can put any die into. wear it as a pendant, or double 'em up for a pair of earrings.