Scooters you probably remember from your high school or middle school gym days.  For bodyweight training, you can use them for all sorts of things.  Here I’m doing peck flys, which you might normally do on a bench with barbels.  The scooters work quite well.  Adjust the weight by starting on your knees, or on your toes, but with legs apart.  Try to keep your arms straight.  My left arm bends a lot, not sure what to do about that yet…