Homemade Pip Boy 300s spotted in this cosplay gallery, which includes some great Halo ODST and Team Fortress 2 cosplay.
And that gives me an excuse to post the live action ad for Halo ODST. It's pretty good until the battle scenes, which are just cheesy:
*Previously: Ad for the Pip-Boy 3000.
*Buy Fallout bobbleheads at eBay.