Football helmet, American Football Wiki
Josh Johnson's Wikipedia page includes laundry list of
Lacrosse helmet - Wikipedia
Justin Renfrow - Wikipedia
Ryan Jensen (American football) - Wikipedia
Mischievous Michigan fans adjust Jake Rudock's Wikipedia page
Hamburg Sea Devils Nfl europe, Football helmets, Football
Nathan Shepherd - Wikipedia
Football helmet - Wikipedia
San Jose State Spartans football - Wikipedia
Picture from Josh Gordon's Wikipedia. He is PALMING his helmet