today a guy i know asked me if i could find him a yellow faball. i never heard of it so i looked around and there are no pictures so i didn't know if there even was one.

The Simpsons 2000 limited edition urethane with pancake weight block.

https://123bowl.com/bowling-balls/faball/simpsons-2000-limited-edition/

It would be hilarious if this is it. Saw those simpson character balls on ebay before and always assumed it wasnt bowlers buying them.  Always NIB and such (ie collectors and Simpsons fans or what not).