LOVE this block. The center is freezer paper foundation pieced, and the melons in the corners are appliqued on. They're cute! I did freezer paper inside for these, and I think they turned out ok. For the set in seams I am utterly dependant on freezer paper.
The fabric is Erin McMorris' Forest in Lime from the Wildwood collection. I bought it from Bobbin's Nest Studio, a very cute quilt shop around here.