I like pistachio and matcha flavoured ones but matcha wins because I love green tea and it tend to be less sweet. I have a lasting impression of Herme's Depayse...
violet and rose!
Passionfruit and Mango mouse? Or howabout Lemon and Lychee tea infused buttercream?
Black sesame !
I am a rose fan. But I've done a durian one, LOL. Doesn't smell so bad.