Skiphs' Mask

Another developer costume pulled out of Hardmode boss treasure bags, which limits it to Expert and Master worlds. Queen Slime is the one boss whose bag never carries a set like this. The roll is rare, so the practical farm is a boss you can call back quickly and repeatedly. The extras arrive with the clothing in a single drop: the paws and the blood do not need their own lucky rolls.

The clothing is appearance only and sits in the social slots. The paws are wings and fly like wings, and the blood is a dye, so most of what drops is usable gear whatever you think of the costume. The outfit also skips the usual split between male and female sprites, so both characters end up looking identical in it.

Skiphs is one of the programmers on the game and its website, which is presumably how the leg slot ended up officially named Skiphs' Bear Butt. In the release candidate build for the 1.3 update the outfit and the paws were brown rather than the colors they shipped in. The paws get compared to Lugia's wings constantly, and it does not really hold up, since Lugia has no claws and more fingers than the paws do.