Here’s a whirlwind tour of some of my favorites. On that list are a POV holographic display, giant cast-resin LEDs, an optical-pump ruby laser built out of parts from AliExpress, blinky goodness ...

He was a bit sad that the Faire organizers forbade him to run the laser at his booth, but I’m happy he continued to show it off. The flash tube, ruby rod, mirror, and lens were all sourced from ...