Yup . That started as a regular spoon , until I lost one side of it . I really like the way it turned out . I've got another one started .
Did you buy those or make 'em ? I have some sponges , both those would work good .
Here's something I made up that works pretty good for stuff . Pretty messy though .
PVC pipe and test plugs from the plumbing dept . Glue the sanding drum paper on it . Use a drill and made a handle , or just use them by hand . Works great on radius work , or larger flats .
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Sets up in the drill press too .
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Also take a section of pipe that matches a sheet of sandpaper . Rip the pipe in half , and glue the paper inside , and outside . Works great if you have a known radius that matches the ID / OD of the pipe .