What you buy with your coins is up to you, of course, and depends on your wishes. If you want to try to complete as many sets of your own as possible, let me know and I'll send you a list of specifics to buy. If you want to get them to pass around, I'll send you a short list of the rarest of them. :o)
Thank you for the pass-along collectibles. Are you interested in completing your sets? If so, let me know and I'll see what I can do. Some of the collectibles, like the Yaris "Y" set, are pretty much extinct now, though.