I think mine was pulled off a crystal castles or missile command. It has almost new rollers. Must've been nos. Also you could get a new ball and dismantle it and put the yellow ball in.
UPDATE!!!!SUCCESS!!!! I want to especially thank brzezicki (Brian) and andrewb (Andrew) for the parts and advice and everyone who contributed to helping me getting CENTIPEDE running!!
I learned an awful lot from troubleshooting this that will help the next time around. Cheers guys!!