I bought the new 100 block magazine. So, I will be trying new blocks from this for the remaining ones I have not made yet. I do have some to mail out. I am confused. I went to the post office and they charged me $1.95 for one envelope with a grown up block in it. But, I receive grown up blocks from everyone that has 65 cents as postage. I have always mailed out blocks with the 65 cents before. So, I guess I will mail them with 65 cents. I only hope no one has to pay anything for lack of postage. Please let me know if you do.