I just finished up my weathervane blocks, they turned out better than I thought they would but I only cut out enough to make 6 blocks so now I have to go back and cut out more so I have one. I guess I'm not the sharpest crayon in the box!!! I want to do at least one more set. How many 12 1/2 blocks fit in a flat rate envelope? Sorry, I can't post a picture. I don't have a digital camera or cell phone. I'm loving all the ones that have been posted so far!