Try ebay! Just look up disney trading pins. My 3 girls(13,10 and 7) all wanted to trade on our recent visit. None of them had done it before so I made them use their own money to buy the pins. They each bought a few to start and when we visited the Character Premiere store, they purchased a few more. The pins there were as cheap as $3.99. The pins in the park start around $6.95 if I remember correctly. If you search enough on ebay you may be able to get some for even cheaper. If they are going to trade, don't let them pic one's that they won't want to get rid of. That was my 10 yr DD's problem. She would get pirate pins and not want to trade. She got to the point just before we left to where she had nothing but pins related to pirates in one way or another. They did have a blast trading though. If you stay on site, ask the lobby and gift shop if they have a pin board. A CM at the POR told my DD about it and brought it out for her to look at.