It doesn't hurt to dress up once in a while, but if you're still uncomfortable with dapper wear, the Skull Tartan Bow Tie may make things a tad easier.
Vanities' Skull Tartan Bow Tie is the latest item in the mancessory department that manages to give formal attire a bit of an attitude. It's a clip-on style that comes in several colorways, all of which features a miniature skull in the middle. One has a red and white colorway in a traditional tartan pattern with criss-crossed horizontal and vertical bands in different colors. Then there's one with a camo-theme, another with a blue denim look, while the last one is dressed in all black.