Just an aside--
If you do decide to try to keep the teeth and not the testes, be careful fishing them out. That's probably Formulin in the jar, and if it is, it isn't nice stuff. You'd want to avoid getting the liquid on yourself and avoid touching the teeth until they're rinsed off thoroughly.
Probably just easier to keep them as a conversation piece. Think of the fun a kid could have one day taking that to show and tell!
