I made a stand for my 1978 Milton-Bradley Starbird.

It uses a M6 bolt and nut for the pivot point between the clamp and the upright strut. Sorry, I'm overseas and 1/4-20 hardware is hard to find.

The base mounts to the upright strut with 1" #6 pan- (or truss-) head machine screws. (I actually brought those with me.)

My print was done with transparent filament, mostly because it was available but it also closer matches the off-white of a 45-year-old toy.

The pin on the clamp fits into the screw hole on the neck of the space ship.

I just estimated the design of the logo for the base from the tiny stickers on the sides of the toy.

Prusa

i3 MK3 MMU 2

Doesn't Matter

Yes

20

20% 3D honeycomb

Supports on build plate should only be needed for the underside of the base, unless you flip and print it upside-down.