What calligraphy content can be written on three-foot rice paper? I'm in a hurry.

Suitable for writing poems within 50 words. For example, Chairman Mao's poem Yongmei. Or write three or four big characters on it and a few small characters below. For example, the big characters are written in spirit, and the small characters are below. There are three treasures in the sky, three treasures in the earth and three treasures in people. You can connect the world with three treasures. etc