I remember when Duke students threw panties on the court when Lefty Drisell was the coach for Maryland.
AND they threw pizza boxes during an NC State game when one players was accused of robbing a pizza delivery guy.
Or fans throwing tennis balls at the late Dwayne Schintzius, when he played at Florida, after a fight outside of a Gainesville nightclub in which Schintzius reportedly wielded a tennis racket got him suspended for the first four games of the season.
Ga Tech students use to throw dog biscuits on the field at UGA games, and fish at Notre Dame games.
The fans of Vanderbilt U threw tennis balls on their basketball court as time ran out in the game because the Florida Gators player Dwayne Shintzus had been in an altercation the week before where he hit someone with a tennis racket. Florida was down a point as time ran out. But Vanderbilt was assessed a technical becauseofthetennis balls, the Gators made the foul shots and won the game!
I remember 50+ years ago when the green weenies would get thrown on the floor at McArthur Court (University of Oregon), usually in protest of a bad call. They were just tightly-rolled batons of green paper, though.