I didn't have time to read the whole thread so I'm sorry if anybody had any similar ideas but these are two things my friend and I thought of one day when we were bored
1. When walking down a fairly small road with a friend, have your friend cross the street and get ready, when a car starts to drive up, crouch down together and lean back pretending you are pulling a rope, works better at dust, I don't know why but people almost always slow down lol, like two people are really going to make a car crash with a rope?
2. This is fun to do in public, preferable a staircase or somewhere individual people walk through, talk with your friend and when you notice someone walking up have your friend (or yourself) start saying "so I really like the new Reverend at church," and right as the person walks by have the other person say "yeah but he raped me," I have gotten SO many double takes from people haha.