The 3Doodler pen can be used as a plastic welding tool. If you have something made of ABS plastic (the most common form of plastic) you can repair it with the 3Doodler. For example, two broken parts can be welded back together by “drawing” a plastic weld where the parts are broken. In addition to household repairs, we expect this to be especially handy for makers who are using traditional 3D printers. So far, we've seen it used to repair vacuum cleaners, eyeglass frames and 3D prints. Let us know what you've been able to fix!