craftgrrl | A plea for bow-tie help!

Okay, so I've been digging online for days, but I cannot find what I am looking for. I need a pattern or a tutorial for how to make a bow tie. BUT, here's the catch: It can't be pre-tied. My brother just wants regular, old fashioned bowties that he can tie himself. And all my days of searching has only turned up patterns for pre-tied clip on ones.

The next logical step was then going to be just finding an old one and tearing it apart to create a pattern from it, BUT we can't find a single one. ANYWHERE. And I don't have the capability to buy offline.

So can anyone point me in the direction of a tutorial or a free pattern? It would really be a life saver.