Tools are almost as addictive as Khukuris. There are literally hundreds of bits, burrs, grinding stones, abrasive drums, Cratex polishing tips (rubber tips on a shaft, impregnated with abrasives in super-fine up to coarse) felt polishing tips in every shape from "Xmas tree" to drums, bits that will take a strip of sandpaper...then you get into the attachments - router set-up, drill press mount, cable tool attachment (which I use - very handy). I don't think they cook (yet) but if you get handy with one, and have a chunk of cast iron,you can, with patience, make your own skillet (maybe even a wood stove

) A competitor snagged the trade name "Do-All" which pretty well describes this class of tool (they're called "rotary tools" in most catalogs.
Check a hobby shop in your area. There are carving knife sets by Xacto and many others, and you can buy the individual handles and various shapes of replacement blades. I started with the straight aluminum handle (as thick as a ball-point pen) and the pointy single edge triangular blade. There are a few things this combo won't handle, but they are rare. There is a large handle with a more sturdy "chuck", but the little one handles nicely on small detail as well as larger stuff if you are patient. This whole hobby is characterized by the stereotyped version of the Chinese saying "Slowly, slowly catchee monkey" - not PC, but very appropriate.