A few years back, some tweens were playing a "game" near the entrance to our development. It's a two lane in road (2 in, 2 out, separated with a small median). About 100 feet from the entrance, they'd placed a large stuffed toy tiger in the road. Driving up to it, first you'd think it was an injured animal, then perhaps a toy that some kid had let fly out the window or something. Cars would stop to pick it up and move it out of the way, or swerve around it, etc. IE, an accident was a possible outcome at some point.
The "kids" thought this was funny, and were hiding in a notch on the fence that lines the street, behind a utility box. They'd put the animal back out once the car drove off.
I fell for it the first time, pulling over and moving it, didn't see the kids. The 2nd time a week or so later I realized....this is a prank. I drove past, u-turned, and spotted the kids. This time I went back, pulled over, got the toy, and went up and yelled at them a good bit. That they were going to cause an accident, etc. They pretended to look remorseful. I took the toy with me when I left.
I waited as well and saw them slinking off home, laughing. So I took photos of them. We have a community patrol sheriff. I went and showed him the pics and explained the whole thing. He knew who they were and told me he'd speak with their families. I did not want to have them come to my house and know where I lived (big enough neighborhood that unless they decided to stalk me, they didn't know who I was). Teenagers at that age mostly outgrow the pranks, but a very small number can go much worse.