In sports, teams usually have their helmet stickers with the club name and logo to go with it. They get hundreds of them each season and would usually go for the best quality prints to be able to promote their team for the rest of the season. You can only imagine the degree of contact these stickers get every single play, so they are specially designed to withstand that.
http://www.visigraph.com/custom-decals-stickers-magnets-and-labels/helmet-decals-stickers/
