Merpenguin Fin

The Merpenguin Fin is a body item in Club Penguin Rewritten. It costs 500 coins in the Costume Trunk catalog when Underwater Adventure is playing at the Stage. It could also be obtained during the Penguin Play Awards 2018 and Penguin Play Awards 2020.

Trivia

 * It goes with The Surf, Shell Necklace, and Shell Cuffs.
 * It's worn by Flippers.