Any really funny legal prank?

My friends and I already know about The golf course air horn prank but I want to know if it's legal. My friends and I would hide in trees (people almost never look in trees) just outside of the hole that we sit at (no trespassing). Or we would wait for walkers to pass by. We also do something like ding dong ditching in daylight where we wear snuggies. Ring the doorbell. Run to the sidewalk and wave to them. Then run away. It's like a light joke that people are usually just confused. We want other stunts or pranks to do because we can't just do those two all the time.