At Confuzzled this year, they did a cool Portal-based photoshoot using a two camera rig and some software to stitch the images together. Here are my favourites of Daryil.
I believe these were taken by Malamutt and EZ Wolf. Thanks, guys!
The last photo was supposed to be a cheeky butt shot, but it didn't work out quite as well as I'd hoped.
Originals are here: http://photos.confuzzled.org.uk/p294094207