I used a cube divider in my father-in-law's store as a design board and it worked quite well!The pattern I used is Elizabeth Hartman's simple charm squares baby quilt pattern and I think it turned out quite well. My sister-in-law chose the same pattern when I offered to make my little nephew Jacob (born 23 days after Ezra!) a quilt.
I love the vintage feel of the quilt and think it coordinates well with the decor of Josh and Keri's house. I hope Amelia enjoys many hours of tummy time on it! Also, check out Amelia's room here. You can see that Keri has a great eye for design!