Scrub Daddy Keychain

My friend asked me to help him make a keychain based on the scrub daddy sponge, I managed to get the general look correct in freeCAD, but it's still a bit rough.

it contains 3 variants
-one with a keychain ring.
-one with a hole in the forehead (friends request)
-and a base model of the sponge for adding anything you want.

it also contains the freeCAD save file with all the variants enclosed inside.