[Archie]

Here's what to do:

Make a set of grips for it. It will be good practice and give you a project. Then clean up the metal without removing any, and then either re-blue it with a home kit or spray it with lacquer to keep it from rusting. Then make up a small, glass fronted display case to show it off and put a card in it proclaiming it to be Sacajawea's personal garter pistol on the Lewis and Clark Expedition. (When asked, tell them I put you up to it.)

All your guests will love it.