As per a request, here's a Utah Jazz fidget spinner that features Brutus that I came up with. This spinner uses (3) 1/2" ball bearings and one 608 bearing. This spinner is only about 3-3/4" in diameter overall.
I would heat up the print and ball bearing with warm water and the bearings will slip in.
You might crank up the resolution to 0.1mm to get a little bit better look.