Lots of sports teams but manly football helmets.
Its normally just a team logo.
Soldiers decorate their uniforms with pride, ironing different decals and badges. Huge fans of football have now copied this idea and have started to attach decals to football helmets. They are purchasable on Amazon.
They are stickers used normally on helmets.
The decals on the back of the Arkansas Razorback helmets are sledgehammers.The decals are given for big plays.Reportedly the summer of 2009, the team had to break a 3 ton rock with sledgehammers to represent "chipping away at the SEC"-- something at which they seem to be having some success in the 2009 season.
They are axes signifying the big game axe that is awarded to winner of the big game between Stanford and Cal
They are award decals. The one with feathers on the hatches are for academic excellence and the ones without feathers are for big plays on the field.
No the pictures are decals. Each player has two helmets per game so they can change them out if need be during the game.
In 2008 the NFL placed the "GU" decals on the back of each player's helmet in honor of Gene Upshaw, a retired player and the head of the NFLPA who passed on recently.
Since 1968, the helmets of Ohio State players have been adorned with white decals approximately the size of a quarter depicting a [[Aesculus glabra|buckeye leaf]], awarded for making significant plays and for consistency of performance.