Replicate the 1976 KIM-1 computer on an Arduino. Pocket-sized 6502 coding! Use serial port, or add small PCB to make a stand-alone device.

SpacedOut is a real life remake of the old classic Space Invaders arcade game.

This ouija board gets a life of its own, with the planchette vibrating when it approaches certain letters - and it opens a lock!

This is an autonomous Robot Arm that can play chess using image processing and machine vision.