PEZ on the ceiling of my classroom. I still catch students looking up at them every day, and there's still a lot of room to put many more up there! Right now, there are about 60 dispensers hanging above our heads. I have about 400 left... how many should I put up?!
I just realized that I got this idea from a prank pulled on me when I was in high school. My friends came into my room and hung all of my PEZ dispensers from my ceiling to surprise me when I came home to find my collection above me. The photo below is of my room in high school. I remember leaving them up there until they started falling down. :-)