The file 'Cat Treat Puzzle: Egg 3D Printer Model' is (STL) file type, size is 199.6KB.
https://youtu.be/ntud1Wk7rGU
Treat feeder for your kitty. Put a few treats in the egg and watch it topple around.Comment with your cat pics! ^._.^
There are some hefty overhangs but you should be able to print with no supports without much trouble.