This came up in the Hufflepuff common room, because I happen to be in all four houses, being Admin and all. Anyway...
Griffinpuff
Ravenrin
Huffledor
Slytherclaw
Griffinclaw
Hufflerin
Ravendor
Slytherpuff
Griffinrin
Huffleclaw
Slytherdor
Ravenpuff
Or perhaps...
Grifflepuff
Ratherin
Huffindor
Slyvenclaw
Grivenclaw
Hutherin
Raffindor
Slyfflepuff
Gritherin
Huvenclaw
Slyffindor
Rafflepuff
Or best of all... Slyraffledor?
I think I'm a Slytherclaw, cos I have traits of those houses. I think I'm pretty ambitious about intellectual stuff.