My favorite is a wood working chisel in various widths. Very handy to use as a scraper and handy for cleaning out inside corners, excess glue, etc. Also great to rough out a shape like a wingtip.
For those of you who have metal tools, fixtures, jigs, etc. that are rusting a little, get a can of Johnson's paste wax and wax them every now and then. You can scrub off the rust with a scotch brite pad.
carl