How wonderful that your boys are willing to try. I tried to interest my son (he is a paraplegic) and he was uh,NOOOOO. I feel sure that watching you do it, gives them confidence to try, and honestly there really is nothing girly in quilting quilts! You know long ago, women would spin cotton, wool and flax year round. Then the spun fibers went to a weaver (usually) that was a man! See they got the big machines,that seemed so complex, now we have them!