College Football Helmets
College football helmets are much more varied than professional football helmets, and not just because there are four times as many of them (precisely, as of this writing: 32 NFL teams to 128 NCAA Division I Bowl Subdivision teams, although that is not really fair because there are many other college teams that aren't in division I). College teams also seem to redesign their helmets more often, and more radically. My theory would be that college teams are defined by their college, and the logo is secondary, whereas pro teams are defined by their nickname and logo, so changing it often or drastically reduces fan identification with the team more seriously. Whether that is true or not, it is certainly the case that college teams more often decorate their helmets with only letters, at least among the major ones. Some of these can be rather stylish, and I am fond of the ones from Duke, UNC, Georgia, Georgia Tech, and Virginia Tech (but perhaps the fact that I gre...