The tanooki (raccoon dog) suit first appeared in Super Mario Bros 3, which was released 23 years ago. If Mario found a special feather, he would transform into Tanooki Mario, which allowed him to turn into an invincible statue and to fly, so he didn't actually skin animals and wear their pelts.
There's a game on the site where you play as a skinned raccoon dog chasing after Mario, who wears a tanooki pelt that occasionally drips blood.
Again, not making this up.
Edited by Tyler, 16 November 2011 - 01:19 PM.