Way to go john, they look belters. Only done one letter opener before, and that was wrong, never done a key ring.
As regards your finish, with wood i use sanding seal, sand to 4000, friction polish, sometimes just a smidge of BLO, then wipe it off, CA glue, carnuba wax, lastly Ren wax.
Acrylic, i sand all the way through to 12000, Tcut, Brasso, ren wax.
More pictures..