This square uses an interesting variation on the double crochet stitch. By adding extra yarn overs, the double crochet leans right and left each row. It makes a slightly wavy edge.

I used about half a skein of Cascade Anthem
Worsted weight 186 yds #33 Cockatoo
I used a very small amount of Cascade Anthem
Worsted weight 186 yds #14 Cream