I have one more question regarding trading. I have gotten quite a number of pins for all the members of my family. The ? is: if you want to trade a set, i.e. the retired Rescuers set of 5 pins, how would you trade that? I have read to trade it for a set, would that be for a set with the same number of pins, or could you trade it for 5 individual pins? I appreciate any help you can give.