Obstacle Course Class in upcoming show... what to practice??

There is an obstacle course offered in the next fun show and I was wondering if any of you have ridden in one or might know what kinds of obstacles I should work on/practice for. I was thinking maybe a teeter-totter, bridge, gate, mailbox, spooky objects (flags/'car wash') maybe drag something noisy??

You might have to back through a chute type thing, so that would be something good to practice.

Just about anything you can think of might be there. Flags, small jump, ball to push, as MN said, backing between poles, sometimes with a turn, sidepassing over a pole, gate, raincoat to move from one pole to another, keep thinking.....but they are fun!