Happy St. Patrick's Day!

The shamrock pattern can be found at PlanetJune. I found it actually helped keep the shape of the larger shamrocks a bit better if each dc was replaced with a hdc, and a sc in loop was replaced with a sl st in loop.

You can also attach safety pins to the back to make a nice little shamrock pin. I used size 1 (1 1/16") safety pins. If you have a hole in the center of your shamrock, when you stitch around the pin exit from back to front pretty much anywhere, but thread the yarn through the center hole when going from front to back - this fills up the hole and avoids random stitches showing on the front of the shamrock.