The Cat in the Hat Knows a Lot About That! S01 E04 Oh Give Me a Home

Nick has a super-duper special shell and Sally also has one—The Cat in the Hat takes them on an adventure to the beach where they meet Tucker, the hermit crab, who is also looking for a new shell because he's grown too big for him, both Tucker and Sally now have super duper special shells at a seaside fashion show in its first edition.