Belessa.nl, I had to get some myself! I had to look for it, because it wasn't in the tea and coffee section, but eventually I found it. I chose a package with these two flavors: Green Tea Pomegranate and Oolong Peach. It sure sounds tasty, doesn't it?
I also bought this cute tea infuser, which floats! Also at HEMA (€ 3,00).