When I took the class last year, we received virtual badges for accomplishing certain achievements. This year, as a TA, I wanted to make a physical hardware badge so students can wear their achievements!
Idea is that each achievement is a copper jumper (cut on the Fablight 3000, formed using FDM tooling and an arbor press), and can be pressed into the badge board which has 16 sockets for simple led circuits. cr2032 coin cell in the back with a SPDT switch to conserve power.