Balloon bust  - Use three helium-filled balloons. One tied to 50 foot Crepe Paper (important to use crepe paper (aka party streamer) so that it just snips and doesn't wrap in prop like string), the second balloon at 25 feet and the third at 5/10 feet. Everyone gets 3 high-speed passes at each balloon (I.e. they have to be full throttle parallel to flight line passes). You make up some points for breaking them.. but usually the bust is so rare, the round of applause when someone does break them is reward enough. Lots of fun.. really a "chance event" (it's hard!)

obstacle coarse- To be announced. ( ground course)

Most Touch and goes in  2 min.