Marty McFly's Hat Is A Choking Hazard

The biggest danger to Hill Valley isn’t Grey’s Sports Almanac, it’s the small parts in Marty McFly’s cap. This form the inspiration for Back To The Future IV, where Marty travels through time to make sure his future self doesn’t strangle on the drawstrings of a poorly designed hoodie.

Back to the Future: Part II: Marty McFly Cap Replica [Amazon] (Thanks to jpropaganda!)