We love Halloween, but we also realize that some readers lack the free time or emotional investment to build a lifesize Power Loader from Aliens. Here are 20 costumes that you can whip up by Halloween weekend.

NOTE 1: Some of these costumes are more conceptual than material and thereby require a bit of dramatic flair. Also, know that a few of these costumes will annoy the hell out of everyone in a 3-foot radius. You've been warned, so don't blame us if your loved ones shun you until Halloween 2011.

NOTE 2: Here's that Power Loader costume if you're feeling intrepid.