I have something to admit. Until four days ago, I only used clip-on bowties. Then I stopped by Odin, one of DBs fav shops (and rumor has it, according the hot, vegan gal ringing me up, they have a no-fur policy!), and I picked up a real-life, grown-up, plaid, cotton bowtie by Engineered Garments. As fate (or necessity) would have it, I had to learn to tie the damn thing properly!
So, why do we love bowties? They're not just for Pee-Wee or tuxedos anymore, and they've been rescued from the pits of nerd-dom. They are geek-chic, intellectual-sexual, and unlike the long tie which draws attention to the mid-section, they say "my eyes are up here!" One word of advice for the bow-tie adventurer: steer clear of over-sized bow-ties unless you make appearances at childrens' birthday parties. The narrow and smaller ones are quite fetching.
Thrift stores are full of ties and bow-ties, but if that fails you, ASOS (who has a no-fur policy) has a pretty good selection of narrow cotton bow ties.
I'm smitten for the bow tie necklace at Topman (also, with a no-fur policy), as well as their very affordable metallic, poly bow ties:
How to tie a bow-tie: