Each student received one of each. As the co-teachers worked through various math problems with students, one teacher would offer a correct answer while the other would offer an incorrect answer. Students would have a moment to reflect or talk to a peer, and then be asked to decide which teacher was correct by holding up the corresponding stick puppet. Teachers would choose one or two students to explain their thinking before revealing the correct answer.
If you don't want your face on a stick, consider choosing a football team, a favorite color, or a celebrity to represent yourselves.