Flippin' penguins, man. I was so torn between giving him a rockhopper and an emperor tattoo, since both of them are some of the better-recognized penguin types and there are a few inconsistencies when it comes to Nagisa's totem (at least where specifics are concerned), so I wound up flipping a coin on it. :T

Free! - Iwatobi Swim Club, Nagisa, and all related characters belong to Koji Oji, Mashahiro Yokotani, Kyoto Animation, and Animation Do.
Don't steal them. You'd make him pout, and nobody wants that.