Some of these designs are really, really awesome. Some teams should really consider a look like this. With the NFL offseason in full swing, it's probably a matter of time before some team makes a uniform change. The Tampa Bay Buccaneers made a uniform change last offseason, and they decided to go with a futuristic look.
A company named Deeyung Entertainment decided to design these futuristic helmets for all 32 teams. I really like them. Check these out:
My personal favorites are the Chargers, Eagles, Giants, Panthers, Rams and Seahawks.