The tickets were stiff like plastic and I asked if I could keep ours. The man collecting them told me absolutely not - they reused them every day. Bill told them I was a scrapbooker and really wanted them but he also told Bill that they were not allowed to let people keep them. At the end of the trip the guy came up to me and handed me a brochure and told me, "The tickets are tucked inside - you can have them, just don't tell the other people on the sub that I let you have them."
This photo is the one that was on the back of the cardboard photo frame for the photo that Bill bought of us.