Critters Crossing. Everyone needs a "Mosquito Crossing" sign at the summer cottage. If you own a formal wear shop or a wedding chapel, you really need the "Penguin Crossing" sign. Taverns everywhere should warn patrons about inattentive jackalopes, and actual dairy farmers might have a genuine, non-cute, need for the "Cow Crossing" version. These are all well-made 12" square indoor/outdoor metal signs, painted standard traffic yellow with a black border and realistic animal graphics. Each hangs diagonally from a pre-drilled 1/4" hole.