My school did a production called "Just Another High School Play" which is basically just a parody of a bunch of different famous plays. In our play, when the "director" said "bring out Tybalt" instead, we brought out a Tigger puppet. Tigger has nothing to do with Tybalt of course, but this was just a joke. It was just very unexpected, and if you used Tigger, it would sort of show that while Tybalt is villaneous, at heart, he's just a young teenager.