“Exfish” can be interpreted in many ways, one being an ex-fish , in the manner of the ex-parrot. In other words, dead. A cartoon fish skeleton is a highly recognizable visual. I’ve worked the word exfish into the vertebrae of such a skeleton, shown in close-up as if under an x-ray screen. This sticker wold be applied to skinny vertical objects like sign posts and street lights. Ideally it should look like the fish skeleton is an X-ray view of the pole’s innards.