Originally Posted by
lakekids
You could also make them all wonky. Instead of just a mini border around the smaller ones, add a larger border 3 or 4 inches around each one. Then turn them slightly and make them all a standard block size by cutting them so that the 'border' is wonky triangles.
http://www.amazon.com/Twist-Turn-Fra.../dp/1885588100
That's what I was going to suggest. I did this with a quilt in similar circumstances, and you couldn't tell that the inner blocks were all the same size.