I’ve been having a lot of fun recently making interactive gizmos (a.k.a. “history appliances”) using microcontrollers and other small electronic and mechanical parts. If there is any interest, I could arrange to have some Arduino kits shipped to CHNM and we could have a session of building and programming gizmos. It is easier than you might imagine. Depending on the amount of interest, I could either provide the kits myself, or arrange a deal for participants to buy their own kits to take home.