First off, your Batman/Mario is hilarious and nicely done. Very creative and a breath of fresh air.
The Mario/Deadpool sounds promising, since anything with Deadpool always has me giggling like a schoolgirl. However, the pic doesn't work for me, so I can't really judge anything, but like I said, that's an ace idea.
Red Sniper (TF2)
Wreck it Ralph (Wreck it Ralph)
Tommy Vercetti (GTA Vice City)
Ash Williams (Evil Dead)
Wolverine (Marvel Comics)
Rex Power Colt (Far Cry 3 Blood Dragon)
Post-Apocalypse Thor (Marvel)
Ellis (Left 4 Dead 2)