Last December, reader Michelle decided to take a swing at building her own replica gravity gun from Half-Life 2. It's done now, and it looks fantastic.
It looks like it was a ton of hard work, from re-modelling the gun's 3D wireframe to laser-cutting to a ton of painting and fiddly construction, but the results are totally worth it.
You can see a progress build of the gun, as well as more final shots - showing how it lights up - below.
Gravity Gun (Half-Life 2) [Overworld Designs]