An example of Kaleidocycle
When I was browsing the internet looking for 3D Papercraft / Pepakura figure, I found an interesting website called foldplay.com. This site provides a service that enable us to create a kaleidocycle with our own photos. Simply upload 4 photos and the pattern will be done for you. Download and print it with your color printer, do some handcrafting actions (instruction is provided) with a cutter, ruler and glue. Anyway, it’s suitable for a valentine gift. 
Follow this link: http://foldplay.com/foldplay.action and have fun!
ohw.. it looks so nice.. thX, i’ll try at home.
Warning (to people else u) :
don’t try this at office, or u’ll be fired by your BoZ..