Cha-cha-cha! Maracas!

grabcad

Probably the only musical instrument that I have any chance of learning to play. :) There are 2 versions - the first has a threaded handle and the rattle has thicker 4mm walls. The second version is made to be glued together and the rattle wall is thinner (2.4mm). YMMV, but I had trouble printing the threads, as I had to use a brim with supports and the threads got buried in the support material. I think if I had S3D instead of Cura, I could have made that work.