I did a pinwheel small lap quilt out of charm packs. I'm not the brightest star in math and didn't figure well enough on how many charm packs I needed. I used only two and really needed three. My mom, who is 4'9" 125 lbs, uses it as a lap quilt. But when she's gone, she's 97, I'll use it asa wall hanging, it's that small!
