A design I started working on oh, years ago, but never finished. I drew the cone in Sketchup, sliced it with a slicer plugin, and imported the slices into CorelDRAW. I had all the slices smoothed, and the guidelines for the slots drawn, and then I abandoned it. Today I added the slots and cut it.
@endymion I sorted out my card into “blues” “greens” and “cartoony”. I’m going to make another one, maybe the green one. I was thinking of trying double sided cardstock that’s all from the same pack, and all GO together. I think that would be even better looking, but not as entertaining as using Christmas cards.