If you like to work with models, miniatures or small carpentry projects, regular power sanders are too big and powerful. This mini power sander is super-easy to build and will make a great addition to your toolkit.
In this video, YouTuber kipkay explains how to build the mini power sander out of a cheap electric toothbrush. All you have to do is cut off the toothbrush's bristles, cut out a tiny piece of sandpaper, and attach it on the rotating head. This custom tool is great for removing the extra plastic bits that get left on models and miniatures. The smoother you can make things, the easier they will be to paint.
$US5 Mini Power Sander! [YouTube]