I would agree with WoodieB8, be careful about using Devcon on a bomber. Devcon, etex, etc., will go on quite thick and may kill entirely the action you want from the bomber. I would personally use an auto clear as Woodieb8 suggested or three coats of Rustoleum Lacquer from a rattle can. Walleye have teeth but they aren't anything compared to a pike or musky........you should have no problem protecting the lure with a thin coat.
Jed V.