I was a lucky audience member selected for the Indiana Jones show, too. I was a "laugher" and had to do a "party laugh". It was a blast being on set w/the stunt people. I have always loved to act (although don't consider myself good enough to pursue a career in acting) and this was a blast for me. Needless to say, my 6 1/2 yo DS was extremely envious that I got to "play" with Indiana Jones!!!!
I do agree ... a pin would be nice, even if you could only get it (a) if you were in the show and (b) you had to pay for it. I would have paid for a pin, a t-shirt or even a video of the "performance"! DH said he was surprised that they didn't sell us a video. I def. would have bought one!!!! It wouldn't cost much to do ... really ... they could even burn it on a dvd or dub it onto VHS tapes. If you wanted it, you could buy it and they'd burn or dub a copy for you while you waited. Really ... do you think it would cost a lot of $$? I think people would be thrilled to have a copy of themselves!
There was a guy who was very disappointed that we didn't get a "memento" of our performance. Oh, well ... what can you do!??!