Way to go! Looks like he's completely obsessed now. You definitely have no choice but to go buy yourself an new sewchine for yourself!
As for the compass, it looks great!
For those of you who are afraid to try it, like I was, watch this tutorial by Brenda Henning (is that her logo on the paper DH is sewing?) It makes it VERY simple and easy. Even I did it to my satisfaction!
http://quiltinggallery.com/2008/01/03/mariners-compass/