For only $899, you too can own a faithful prop-replica M41-A pulse rifle seen in the movie Aliens. It weighs 15 pounds and features a working grenade launcher pump action (the pump that is) and has a collapsible shoulder stock.
It also features a nifty wall plaque so that you can display your M41-A. What better way to show the world that you are a dork than by adorning the living room wall with a $899 prop gun from a 24-year old sci-fi movie?
I cannot think of any.