This was a fun little project to sit and work on while watching tv after the kids went to bed. When I say "while watching tv" what I mean is, "while watching Little House on the Prairie" because I seriously watch it almost every night. Or I watch episodes of New Girl on demand. Okay anyway, I just single crocheted a square and then gave it a scalloped edge.
The scalloped edge is just this:
Make 3 single crochet stitches in the first stitch. Then skip over the second stitch and make a slipstitch in the 3rd stitch. Repeat all the way around.