These were the first concepts for the Drifter. I chose a rabbit for the character not only for the commonality of the animal to relay an everyman approach. But it was a bit of a shout out to the WB's Bugs Bunny. As far as his "Drifting", I thought what would happen if you took away a man's hopes and dreams. With absolutely no will, the wind could blow you in any direction. It all went from there... By the way, he was almost a mouse.
I'm glad that the Drifter is a bunny-person, those ears definitely could give it the aerodynamic feel. A mouse (if chosen) might have given it more volume than required for it to basically "drift away".