Buy Guns of Icarus Alliance on Steam!
I'd super dig a fancy art theme with marble statues and columns and paintings and fancy structures/devices sitting on pedestals. Extra points for stuff falling over and breaking as the ships hull takes damage. I'd buy that for a dollar.
Skeleton figurehead.
I think it would be nice to allow player-made cosmetics and have the community vote on favourites. It would be nice to have that community input into a game like this.