My girls LOVE trading. And I only allow them to trade with CMs though they do sometimes want to trade with little kids. Still won't let them. Last year my oldest traded with a little girl and she traded a Lanyard pin. Last time for that....now only CMs. Alot of the CMs will even tell you if one of my girls wanted to trade a Lanyard pin so I knew which ones to take off and hold onto. This year we got alot! If the girls were looking for a specific pin or mentioned Lanyard pins, some of the CMs woud show which ones if any on theirs were lanyard pins and one at Movies gift shop even took a couple brand new in the plastic still out of his pocket and said he saved them for very special trades and traded it with my oldest. They also got a few freebies too. They wanted to trade with a couple CMs (white shirts) and one of them gave them each a tinkerbell pin telling them that Mickey told him to trade it with the cutest girls he sees. LOL
Pin trading for kids is one of the best things Disney thought up! It really gets them excited to interact with CMs and allows the CM to talk to guests. We learned alot of tricks and secrets about Space Mountain from a CM when the girls did a trade with her. I guess I enjoy it too because they get so much enjoyment out of it.
We will definitely be buying more pins next trip to take with us. Perhaps we'll even double our order since the girls ran out of tradable pins pretty quick. My one daughter is looking for the Pumba Safety Collection. She found 8 of them last trip. 4 more to go!
Oh, back onto the original topic...they sell starter sets all over the parks and resorts. There were the regular starter sets (four pins I believe) and then the deluxe starters which had 10 pins? Not exactly sure if it was 10 or 8. Plus they sell longer lanyards, the clips you can put on the bottom of the lanyards...everything. My girls couldn't pass a pin cart without stopping.