Even though I wear neckties about as often as I pilot spacecraft, I'm rather taken by Etsy seller Cyberoptix's Space Shuttle Console silk tie.
The ties ($45) are custom-made, and come in wide and narrow, as well as a range of colors (black, charcoal, French blue, navy, royal blue, dark brown, burgundy and white). You can also choose a custom ink color for $5 more. According to the seller, several astronauts have worn these ties, which seems fitting, if a bit workaholic.
Space Shuttle Console silk tie
(via Crazy Abalone)