Originally Posted by Stitchnripper 
Very interesting. I just made about 80 of those blocks using another tuts where you hold the small part up and let it sort of slide into the "smile" part. I may try this too, since I have about 20 blocks left. Thanks for sharing. PS, this was my first experience with curves and it isn't as hard as you think.
If it's not too much trouble, would you please post a link to the tutorial you used? Thanks!
Here it is:
http://shecanquilt.blogspot.com/2011/12/sewing-curves-is-not-hard-seriously.html