Greetings!

Come on! You have to at least give them a try! Yes, they are pretty, uh, interesting... Of those I hit that you haven't listed yet:

Booger - slight shudder at the concept, but no discernable flavor.
Ear Wax - think Lemon Pledge and you are in the right area
Vomit - another slight shudder, and no, I don't want another - some kind of acidic flavor base

For those in the US, you can always go to Jelly Belly to try them...