2- Well, it's not like I can do something with your avatar, is it?
Actually, nothing in my avatar made it into the Pistol Pete model. The pistol comes from my screen name (not my avatar), and the unpainted mini is a subtle joke on the fact that my army is thus far unpainted.
So, you don't really need to do something strictly relating to the avatar. His name is Siamtiger; you could make a little tiger out of greenstuff or whatever. His gate could be made easily from toothpicks, if you want to make something out of his avatar.