I'd like to buy a case of Kinder eggs while I'm in Europe. I'm guessing they're cheapest in Germany? Anyway, I'll have a day in Berlin - any recommendations on where I might have some luck getting an unopened case of 72? I want the case (not just the 72 eggs inside) because it's much easier to fly home with them if I have a cardboard box that fits correctly around them.

Thanks in advance!