32 teams NFL Football

49ers, Bears, Bengels, Bills, Broncos, Browns, Buccaneers, Cardinals, Chargers, Chiefs, Colts, Cowboys, Dolphins, Eagles, Falcons, Giants, Jaguar, Jets, Lions, Packers, Panthers, Patriots, Raiders, Rams, Ravens, Redskins, Saints, Seahawks, Steelers, Texans, Titans, Vikings

Source picture: http://www.iconarchive.com/show/nfl-helmets-icons-by-evermor-design/Brow...