I want to stay at home.
Unfortunately I suffer from anxiety. In fact, concentrating on writing the above poem helped ease it a little bit. Anyway, why not try writing something similar? Think of an emotion, then write a poem about it using the format "There's a.... in my...." Try to think of the most imaginative ideas you can. Then the rest of the class can try to guess the emotion!
(PS, I know that humans don't technically have gizzards. But I have poetic licence, and I'm not afraid to use it!)