My parents bought a lake property recently and most of the homes in their neighborhood have wooden signs out front, similar to the image I have attached. I would like to make a sign like this for them, but I have no experience in that kind of thing. I should have all of the tools I need (planer, jointer, router, sanders) and I have a router bit that should do a decent job on the lettering. What I'm not sure of is what wood I should use and what type of paint.
I am lucky to live near a very nice lumber yard so I can get pretty much any species of wood. I've heard that white oak, cypress and cedar all do pretty well in an outdoor environment. Since I am just making the one sign and it won't use much wood, the cost of the material isn't as important to me as the longevity of the sign.
As for painting/finishing, I'm not really sure what would be best. I have seen a technique for painting the carved letters using black spray paint and then planing or sanding the sign to quickly remove the overspray. If I were to paint something using multiple colors though (like the fish on this sign) I don't know what to use. Could I get away with acrylic art paints if I put some kind of clear coat over the whole sign after that? Polyurethane or spar varnish, something like that?
And so, venerated sign-makers of the Creek, I turn to you for advice. If you were to make a sign like the one pictured here, how would you do it?