When we stayed at POR in 2001, I was able to small (business card size) "flyer" for each of the restaurants we visited - great for photo albums. Also, I kept the popcorn box to use as a background, napkins with the logo and a sample of a FastPass that we didn't use.
For the ones to buy, of course there are pins. Also, my dd's collected trading cards that was about $2 or so for 5-6 cards. Duplicates can be traded at the purchase sites, like pin trading sites. The girls had a lot of fun and it was much less expensive than the pins.