Anyone who occasionally makes a small hand tool for a special purpose and fits it with a wood handle, will find that the brass end of an empty shotgun shell provides a good ferrule for the handle. Just remove the paper part of the shell and then ream out the cap hole to take the tang of the tool. For very small tools, empty brass cartridges provide good ferrules. Empty shells can be picked up at a local gun club, or you can have a friend who hunts save them for you.