...Ace Race disc. Especially the '13 "mantis".
I have to agree on the Ace Race Mantis. I put one in for our local park league CTP pool and it was passed over multiple weeks in a row in favor of...well, pretty much anything else. Most of the local folks played in that ace race, so everybody had 2 mantises and no one seemed to like them. It's still in the club swag collection, meaning that we literally couldn't give it away.