Hawks, Endeavor, Aizawa from the anime series My Hero Academia would be a great addition to any fan's collection.
 
The Trinity Slap is a iconic scene from the series where three characters team up to take down a villain. Hawks is a Pro Hero known for his speed and feather-like wings, Endeavor is the top hero known for his intense flames and Aizawa is a hero teacher at UA known for his erasure quirk.
 
The sticker could be placed on a laptop, console, phone case, or even on a car window to show off your love for the series.