Hmmm....I have received 31 sets (counting mine) so far. I know I'll be getting quite a few more, but with 60 blocks, I can't guarantee that you will get all different ones back (and not get some of your own back)...so if that is ok with you...you can send them. If you'd rather share some with the farm swappers, thats great too. Its really up to you Sandra.
Also...if you DO send 60...you might rather me send them back in a medium flat rate box or regular priority mail. That many won't fit into the small flat rate envelope...so either 2 envies or we'll figure out another way..