These are pretty cool! You upload four photos here at a site called Fold Play (they have some other fun stuff on there, but I wouldn't let my kids peruse the site). Then print out a page with the photos all jumbled up, then score, then cut, then fold, then glue, and voila!! Your very own kaleidocycle, it flips around and shows a different picture each time you flip it.
Supplies--minimal, had on hand
mess factor--few scraps of paper
fun factor--finished product is great fun
learned by experience--must make good score lines, must let glue dry before moving on to each step, and especially before you play with it!! I used regular printer paper, cardstock would've been better. SCORING IS KEY!