What are you going out as this Halloween? If it's geeky, we want to see it. There just might be a free pizza in it for you.

All you need to do is drop a photo in the comments of you actually wearing the costume. And let me just say, if it's Star Wars, it had dammed well better be unique somehow (like the Lego Star Wars costumes pictured above). And no, we don't need to see a pic of you as a kid in the '80's dressed like your favorite Ghostbuster—keep it recent. Show us a truly creative geeky costume and you could win that extra large pizza with toppings of your choosing. Better get on it as soon as you get home though—we'll be posting the best ones tomorrow. Good luck!

[Image via WTF Costumes]

Send an email to Sean Fallon, the author of this post, at sean@gizmodo.com.