I made this quilt, I don't know if it is really considered argyle or not but it wasn't hard to make. I actually used yardage instead of the charms and it was still easy!
http://www.modabakeshop.com/2010/06/...ty-babies.html
I don't have a picture of it on my computer but maybe I have one on my phone. I'll see if I can find one and add it!