There aren't real rules because rules shouls be clear and simple that's to all that make thread games You just have to give the character above a nickname. Just don't make it too offenssive.
Let's start of with mine
Albi-boy
Flame-Puff
(You didn't post ic so I'll just give you one I thought of when I first looked at your picture,,,,)
Pompom~
Nini or Nen.......... or Smoky hat
Pale Skinned wonder
Hot head
Mr. "Y'all are ugly except me"
Sunshine
Bacon
Puff the Magic Dragon
Diva. Blondie. Maiko Komogamine. Something along those lines.
golden snake