I STILL need a head
Use Darth Maul
1) The problem with the head is that the head would have to be red if you wanted it to be fairly accurate.
2) Waterslide decal wouldn't work because the white hand, teeth, and yellow eyes wouldn't print out or show up properly (Red Bean prob has more input about this).
3) Sticker would be the only way to go and stickers wrapped around a curved surface tend to peel (you could use superglue).
With that said, what exactly are you looking for?