I loved this idea from a second grade room. If you like to use hats in the classroom as the teacher or for students, then this was a creative way to display them. She used plastic milk jugs, added big googley eyes and drew on a variety of mouths and faces. Place the hats on top and display around the perimeter of the room.
Use for read alouds, lessons, and so on. I've seen a ton of hats at a nearby vintage store that I might go back and get. Great idea!