I was never jealous of my friends who had those Viewmaster slide-viewer toys when I was a kid—they just seemed kinda boring, but I would have been jealous if the toy was as clever as this mod. This guy's taken the toy and added an Arduino-driven display unit, accelerometers and a Bluetooth connection to a PC so that it generates animated color-based chromadepth 3D imagery. There's even push-button control of the imagery, which reacts when you shake it. Waaaaay better than clicking through boring 20 3D-ish static cartoon frames, though the psychological effects its psychedelicness may cause hasn't been tested. [MickeyMann via Makezine]