Here is another handmade robot for the geeks in your life. The Terradrone is a steampunk robot with a Nerf weapon. It comes with a remote that allows you to control the bot’s movement and timing of shots. According to the maker, the robot can move around on most surfaces.
The Terradrone measures 14 x 14 x 13 inches. More info is available on SteampunkGearWorks’ page.