Incredible Mario by Harebrained is available at Redbubble

Psych Man by Creative Outpouring is available at Redbubble

X-Men You Never Forget by Ninjaink is available at WeLoveFine

Bravest Avengers by Juan Manuel Orozco is available at Redbubble

Venom Nouveau by Droidloot is available at WeLoveFine

The Strange Case of Dr. Banner and Mr. Hulk by harzack is $12/$14 for a limited time at Qwertee

Pretty Poison by TrulyEpic is available at Redbubble

Carl and Rick by David Johnston is available at Redbubble

Stan the Master by Captain RibMan is $10 today only (5/17) at Shirt Punch

(Source: shirtoid)

Dean and Sam by David Johnston is available at Redbubble