Arduino friendly modules for simple I/O work. Either bare-bones versions of our pinball testers, or sometimes arduino specific designs.
Yet another surplus component that I accumulate over time. I have more than I need, and the piles keep growing. These are genuine Molex KK connector headers, part number 22-28-4080. Good for 4 amps per pin with a pin height of 0.24"/6.09mm
4x3 anti-static silver baggies, with a zip-lock closure. Inner size is probably 2x3 due to the thick heat sealing around the edges. I have plenty of these laying around, from various sources, but surplus to my needs. Don't fit any of my current board designs that need static protection.