Yes. They are fully ready and prepared for players to wear as soon as try get them.
The College Football Final Crew, Lou Holtz, Mark May, and Rece Davis
http://www.helmethut.com/College/Michigan/moorhead.html
Yes, Oregon football does use helmet stickers as part of their tradition. The stickers, often referred to as "Duck stickers," are awarded to players for various achievements, including outstanding performances and contributions on the field. These stickers are typically placed on the players' helmets and add to the team's unique and recognizable look. The practice reflects the program's culture of recognition and motivation.
Michigan with their winged helmet.
No Stickers will not weaken your helmet, put as many on as makes you happy.
rubber
Nevada
Yes they do depending on the stickers
Utah state
NO
Eastern Michigan
If you like.