Please help!!!!!! Someone!!!!

i was cleaning the start/kill light switch on my predator 500 cuz the switches where starting to stick i have done this before to other bikes so no problem! but this time the little ball thats inside the switches so i can roll(what makes the clicking sound) (kill engine to start or from lights off to low/high beams) shot out from the spring and i dont know where it went

so my question is - Where can i get one or can someone help out with one (the little silver ball) thats inside the start/kill light switch? because i really done want to go out and buy the full assembly for $50-90 just because of a little ball