There are two kinds of bow ties: there's the fancy ones, that you actually need to tie every time and balance and fit perfectly in collar. And then, there's the other kind: the adjustable, pre-tied kind used in rental tuxedoes, restaurant server uniforms, Halloween costumes, and occassional forrays into Redenbacher-ness.
And unless you're a major bow tie officianado, the latter is most likely your best bet.
So, let's make one. And for that, we turn to the talented Jessica Lord of Eighteenth Century Agrarian Business. "I think these are fairly easy, a beginner's project, and they are quite rewarding. This is a real bow tie you must tie yourself. After a few tries, you'll get the hang of it. It's fabulous. I want to work one into my wardrobe."
Adjustable Bow Tie [ECAB]