Depends what you're painting.........
I've used the lazy susan thing with a car body stuck to the top of a spray can with blu-tac. Or just use a bent coat hanger stuck to the insides of the car body.
I've painted planes by sticking the coat hangar into whatever holes could be found - gear wells, slots for the wings, slots for the engines - every model is different, really.
A square (6" x 6") piece of plywood with a short length of dowel screwed into it also provides a great painting stand.
Really, your are only limited by your imagination or need.
Cheers,
LeeTree