*sigh*..okay..I'll start
Top 2 I've done:
1. A very pretty 6 foot...ummm...let's just call it a "potted plant"...was removed from a property along with others from a drug raid. It seemed too pretty to destroy right then, so, since it was just a couple of weeks before Christmas, we put lights on it and set it outside of the Sheriff's office for his enjoyment. Being the observant, experienced law enforcement officer he was, he didn't notice WHAT it was for three days. On the third day, his secretary said that he stopped, looked at it, and asked her if it was what he thought it was. She simply smiled and nodded, at which point he smiled and said, "Okay...but don't let those lgihts get too hot." We destroyed it after Christmas.
2. I cut the leg off of an old pair of jeans, stuffed it with towels, sewed the top shut, sewed a sneaker to the bottom of it with fishing line, squirted red food coloring on part of it, and hung it out of the rear passenger's side door of a friend's car.
Best prank pulled on me:
I was to catch a plane for Texas to see my family right after I got off of my midnight shift a few years ago, so I'd packed everything and put the suitcases in the trunk of my car. While I was filling out a report, a couple of fellow officers I'd pulled pranks on before came in and said they needed my keys because they needed to move my car. I was concentrating on my work and really didn't think much about it until I walked outside and saw a long string of certain items of my clothing flying from the flagpole in front of the building.