Marc Tickle is behind some of the coolest teleidoscopes we have seen. Take the Chameleon Kaleidoscope for instance: it is a gorgeous teleidoscope that displays an image that changes color as the scope is tilted in different orientations. You can also combine it with light doodlers, wands, and LED toys to experience trippier patterns.
Chameleon can be ordered in various gorgeous colors. You can get yours here.