Green Tea...
Lot's of different brands, no?
Here's an interesting take on using green tea. Nestle's, the chocolate people market Kit Kat bars in Japan. You can get the standard offering, of course, which they're known for, but... you can also get them with green tea coating.
Sort of working the indulgence of western cultural decline and somewhat staying healthy? I don't know, but I just brought back 5 bags! They're addicting!