So cute! Find a medal piece like this and create a sign by finding plain wood that is made to be a sign from a craft store like Joan's. Paint any color all over the board and create "fake" cracks by drawing cricked lines occasionally. Then paint what you would like on the sign (picture, word, etc.) and to give it a vintage feel sand the board before painting.
Also on these boards
What a good idea! Framed Guest bedroom WiFi password sign "The WiFi Password" by OurWonderfulLife, $10.00