Jugglers needed (base version): 2 beginners, 3 intermediate
The diagram (here passing with the right hand with the same rhythm) simply lays out what a star looks like. The concept becomes interesting starting with 5 jugglers, but it's possible to add more (the distance of the passes increases with the number), as long as there is an odd number of jugglers.
Always keep in mind that the timing of the passes is important, otherwise there's a risk of collisions between B's passes and A's (or C's) for example.
There's a dangerous version with 4 people: shooting star.
Um, all of them (I think; in the end it depends on whether you can avoid collisions)