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)
Torgo (Manos: The Hands of Fate)
Cosplay in progress:
Rex "Power" Colt (Far Cry 3: Blood Dragon) (10%)
MacGyver (MacGyver) (80%)
Fix it Felix Jr. (Wreck it Ralph) (80%)
Ken Rosenberg (GTA Vice City) (20%)
Turbo (Wreck it Ralph)
Dr. Forrester (MST3K)
Convincing John (Fraggle Rock)