[SteveK2003]

Very nice.

Also try gluing strips of sand paper (Testors sanding film might glue better, with none seeping through) to strips of aluminum or brass, for a wider (Or not) and sturdier base.

Or use pieces of double-sided foam tape, available from 3M in most hardware stores or as 'servo tape' in R/C shops, and you'll get a slightly flexible mounting surface to conform to curves. That's basically what sanding sticks are: A hard plastic spine, dense foam, and a sanding element.