I think these are pretty cool!
They can be bought here
Or read about here
Andy and I are proud to announce the births of Mallory Ann Call born Tuesday, May 4, 2010 at 7:44am (4 lbs. 5 oz., 17 3/4 inches long) and Andrew Knox Call
born Tuesday, May 4, 2010 at 7:45am (3 lbs. 15 oz., 17 1/4 inches long).Both babies are doing extremely well.