Left Brain, Right Brain

I am trying to figure out what the 23 flavors in Dr. Pepper are. Prune juice is NOT one of them. I've been sipping and sniffing a can of it for a while now, thinking about this, and here is what I think so far:

1. Caramel
   
2. Grape
   
3. Clove
   
4. Vanilla
   
5. Cinnamon (?)
   
6. Cherry
   Tamarind (?) I've changed my mind about this one.
   
7. Orange
   
8. Tangerine
   
9. Coffee
   
10. Plum (OMG why didn't I think of this before?? There's no PRUNE flavor, but what's a prune besides a dried-out plum!)
    
11. Toasted Marshmallow (added by simtras)
    
12. Apple Cider (also suggested by simtras)
    After checking the history of root beer, I have decided to add the following flavors to my guess list:
    
13. Cherry tree bark
    
14. Licorice Root
    
15. Sarsaparilla Root
    
16. Sassafras Root Bark
    
17. Nutmeg
    
18. Anise
    
19. Molasses
    And I also just took a sip from a new can and realized:
    
20. Almond
    
21. Spearmint (very, very mild and mellow, though)
    
22. Birch Bark (thanks for the great suggestion, Seth!)
    
23. Allspice (thanks for this one too, Seth!)
    

Anyone have any other ideas? I'm going to keep this at the top of my journal for a while because it is so important. It's still an important thing to think about, but I'm going to let this entry slip down with it's actual date now.

Edit: I'm at 23 now, but some of those could be incorrect, so I'm going to keep the list going anyway!