Getting people psyched on 3D printing hasn't been that easy for manufacturers. The costly printers are rarely within the budgets of the general public, and even though the technology is cool, there's no real pressing reason aside from the wow factor that they should become a household item. But a British company has figured out a different approach to bringing plastic machining to the public, with a 3D printing pen they've dubbed the Lix.
Essentially, the Lix is a pen that doesn't require paper. Like a soldering iron or hot glue gun, there's a tiny heater inside that melts plastic filament, which forms into a contiguous, freestanding structure as it cools.