You could have somebody go through spriters resource (namely, the NES section) and sprite up some edits for you.
It's quite a cool place, never would have got into spriting without it.

Don't think i'm aloud to link though...
Well, I should be able to. Look at the Project Zelda Engine.
http://spriters-resource.com/If I can't link, tell me. I'll remove it.
This post has been edited by Resource Dragon: Feb 27 2012, 11:22 PM