Quoted from MrBally:Mike Pacak has a Jolly Park and always brought it to Expo. Once Berk gets deposed and Pacek runs Expo again, it can be played there.
Berk also has a Jolly Park that he's been bringing around to shows. It was having issues at the Allentown show though, not sure if it worked all weekend. Was in his both, so not in the freeplay area. I had looked at buying his a couple years ago, but ended up having a nicer one shipped from CA. Fun game!