Yes! This would be a fabulous kaleidoscope! I've made several & think this would be great! No... they're not hard at all (if I can make one, trust me... anyone can). I do mine kind of different in that I cut each layer separately which takes longer but I find I get better results that way. Which pattern do you plan to use? Another good use of this would be in a "Posy Patch" (I think it's called). I love your fabric!