This is a growing list of Kit-Kat flavours I have tried since coming here, in no particular order:
1. Gingerale
2. Raspberry Passionfruit
3. Cherry Blossom Matcha *
4. Apple and Carrot *
5. Banana
6. Stawberry
7. Milk Tea
8. Coffee
9. Pudding
10. Framboise
11. Soy Sauce
12. Wasabi
13. Bitter Almond
14. Aloe Yogurt (this tasted like lotion)
* I particularly liked these.