Clewn't used to be one of Santa's best toy makers. He believed that kids got naughtier every year, which is one of the reasons he retired. Phineas and Ferb and their friends's niceness, however, inspired him to make toys for Danville.
His name is pronounced "Clew-ent".
He uses special gloves to make toys, but Blay'n doesn't need gloves.