I made my own square in square block the other night, combining some of my favorite fabric collections. It's so bright and happy - I love it! I hope Sun Squares makes you smile:
I could not find an online tutorial for this style of block, so I had to wing it. After a tiny bit of trial and error (I used photoshop to measure Anna's inner blocks), it came together pretty well. Anna Maria is going to post a tutorial for the square in square block on her blog soon. I'll update this post with a link when her tutorial is up. You can download Anna's PDF tutorial here.