Ghosts of Halloween's Past...

So I'm currently in the process of trying to figure out what I plan to "be" for Halloween.  Halloween is one of my favorite days of the year, and my friends and I tend to go all out.  There is no fun like partying in costumes.  Even the most uptight people tend to lose their inhibitions when they are in character.  Not that any of us have any issues with being "uptight".  

Photo proof:





What do any of you guys plan to do/be for Halloween?