Mathemachicken Funny Math Chicken Pun Joke Card

Are you a mathematician who likes farm animals, specifically chickens? So there's this chicken who can do math like an animal! Here's a vintage picture of her on this funny greeting card, and the mathematics and chicken scratchings of equations she's doing in her head are in the thought bubble on top. Below is an old fashioned looking ribbon label that says "Mathemachicken," making this look like a kind of weird flyer for a circus act. But it's only a math pun in a math joke, the kind a funny math teacher might tell in class. (Note: There's a funny message inside [if I do say so myself], but you can totally change it or erase it if you want.)