Yes costumes, plural. I was more than one thing this year, perhaps because I haven't had a Halloween costume in about 6 years. I've always wanted to be Max Fischer from Rushmore for Halloween, but by the time it rolls around I don't have the time to make the suit I want to, so I just end up being nothing. So I decided to make up for it with two costumes this year.
I am a Lost fan, and in particular a John Locke fan, and that is who I was for Halloween. For those of you who aren't Lost fans, this is what John Locke looks like:


He's handsome, wears cargo pants, boots, and various drab colored T-shirts, and always has his knife for hunting boar, cutting fish, or just throwing it at trees. He has a faint scar above and below his right eye, and he is most obviously bald. I have a need for authenticity when it comes to costumes, so:



I thrifted the clothes, got the knife at an army surplus, Mikey did the scar with scar wax, and I shaved my head bald. I wore the costume to my friend's where we go every year to eat some food and carve pumpkins.
I also had to work on Halloween, and I wanted to dress up for that as well, but I knew that nobody would get my John Locke costume, especially since most of my friends from the party, who are also Lost fans, didn't guess who I was on the first try. Instead of being asked if I was G.I. Jane all day at work, I went as THX 1138, so either people would get it or wouldn't.
THX 1138 is a character from George Lucas's first feature film titled THX 1138. Watch the trailer here. Then check out my costume (I made this one):


Mikey made the badge:

About 30% of customers knew who I was, which was more than I had expected, so I think my costume was a success.
You can see all the photos we took on my Flickr page.