BACK YARD OBSTACLE COURSE SHOULD INCLUDE

Thinking of doing a big obstacle course in our medium sized back yard for our son's second bday next month. He enjoys being naked so imagine lots of kids of all ages doing this, clothes optional. Suggestions strongly encouraged.
  1. Tunnel with stuff hanging down like going through a car wash
  2. Slip and slide finish
  3. Hoola hoops to jump through
  4. Balance beam
  5. Hop scotch
  6. Bean bag toss
  7. Small trampoline would be good
  8. Lemonade stand where they need to be both clerk and customer
  9. Whatever ikea has these days in the kid section