Ideas for a sun for my model solar system?
I've just built a big model solar system for use in class, and i'm trying to think of what to use for the sun. The planets are roughly the right sort of varying sizes, and Jupiter is ten inches in diameter, which means the sun needs to be pretty big. I'm thinking of a big hemisphere to cover up the base, like half a big plastic ball, but I'm not sure what to use as the size lets out most plastic balls that i've seen. All suggestions welcome!