Aperture Science Handheld Portal Device
Life size 1:1 scale replica measures nearly 30" in length. It features both orange and blue LED lights and unique sounds that correspond to each colour. A 3 way switch allows you to select blue, orange or off and when you pull the trigger you activate the "firing" and sound. Limited to 5000 pcs worldwide.

Due for release on 15 May 2012.

http://www.play.com/Gadgets/Gadgets/4-/29406113/Valve-Portal-Prop-Replica-Gun-Aperture-Science-Handheld-Portal-Device-/Product.html

I'm normally not one to spend money on things like this but I might get one for an awesome household decoration...

Thanks for the heads up frog!