I swear to god the buckeyes have marijuana leaves for the stickers. Either way, I vote no decals, clean and simple is the way to go.
One day during my junior year of high school I was wearing an Ohio State shirt with a Buckeye leaf on it and the ROTC teacher tried to make me take it off beacuse it "promoted drug use". I refused, so we went to see the principal, who just so happened to be an OSU alum. The Shirt stayed on.
That old ESPN commercial with the OSU Equipment guy that puts the pride stickers on was priceless.