What about just bringing some orange pylons (the little 6" ones) and setting them up off to the side of a run? I'm not saying it's allowed (I have no idea) but it could be an easy way to have some fun. We used to do the same thing with sport bikes. Head to a parking lot and setup some cones for an hour...
edit: You could have a "rolling course". One person sets up the cones, a few people blast through, last person picks up the cones. Rotate people so all get a chance to try the course. I don't think Puddy Tat was all that worried about being on a sanctioned course, with timers, etc. Just wanted to increase the difficulty by having set objects to carve around?!?
FWIW, as part of our training the other day we all ran the SBX course a couple times. Was fun to try and get my body over the gates as much as possible. Fun little course!