In the past few years, we have covered plenty of cool light toys here. The Rabbit Tanaka Rave Disc is also worth a look. It is a psychedelic light toy with 64 light patterns and 2 modes. It rotates LEDs to generate trippy patterns and has 2 modes (crazy & fantasy).
This LED toy has two detachable parts for easy disassembly. It is rare but you can find it from time to time on eBay.