Dremel MiniMite | $20 | Amazon
Photo: Amazon

You probably wouldn’t want to use the Dremel MiniMite for, like, cutting through steel bolts, but it’s perfect for smaller tasks like sanding, polishing, engraving, and, uh, carving jack-o-lanterns. Plus, it’s battery powered, and only $20 today, making it a great addition to your toolbox.