Introducing the Boomerang Cross famously used by Belmont in Castlevania but as a small fidget spinner! It is print in place with no supports but you may need to use a brim or adhesive on your bed because of the bearings. I don't use either though I have a Sliceworx flex dipped plate (works amazing for adhesion). This version is about the size of an adult's palm and the center ring can fit half your finger through at 100% scale.

Update 11/18/24 -Mirrored the details on the topside to the bottom side for symmetry. But this does mean you either need to support the small overhangs on the bottom side or have good bridge settings to print it without supports.