I'm lucky enough to live in a neighborhood where our mailboxes are up on the house. Mine drops right into the garage, which is very convenient and secure--but the brass mail slot cover has never been pretty. I can't believe how long I lived with it! Many times I've eyeballed new boxes, new covers. I guess either I couldn't find what I wanted or didn't want to pay for what they cost. So, I removed the 4 screws holding it in place, sprayed it with gray primer then a spray of Rustoleum black satin. I made up the vinyl decal on my Silhouette (its only about 2 inches). Even the junk mail will look better with this mailbox.
Really, this project took all of about 10 minutes of work time (maybe 15 if you count the time the Silhouette was running)--plus overnight drying time. I had to find something to do last night because my internet was down!