I took a ceramics course at Sierra Nevada College a couple years back. Found a box of 30 rolls of Arista slide film. Nobody knew why it was there, so I asked and got it for myself.
I don't know if it's still any good. Looks ancient. But I still have 14 rolls left. I can probably get a roll shot and developed to find out.
Maybe we could do a russian roulette style thing where the film goes out, two people shoot it, and we see if anything comes out. Probably shouldn't do more than 3 to the roll, just in case it doesn't work.