See that smiley face button? It’s actually a camera. Smile! The Smiley Face Camera is a Japanese import (and thus a bit pricey at $92) but is guaranteed to make your subject smile. You can record up to 60 minutes of video, plus stills, or even just audio before exporting the data and charging it via USB. It uses micro-SD cards to hold the information (not included). Groovy.
Hidden Spy Pen HD Camera & 720p Video Camera Recorder DVR - Record in 1280x720 HD Video Resolution - Free 8GB SD Card Included