I think the personal fruit machine would be the best prize
my sister has one and she uses it as a piggy bank :D its great cos everyone else puts their money in there too! (and you can set the win rate - ha ha ha)
( SkUG .co.uk did actually post a naked 20,000 picture..., Mon 3 Mar 2008, 12:43, archived)

i want one soooooooo much!
i put £5 in each of 2 machines last week, won more than £60 altogether. yay, new shoes!
( Smash Monkey keeper of the king's chocolate starfish, Mon 3 Mar 2008, 12:46, archived)