I recently discovered a nice, yet simple drink: Mango Lasse
The way I do it is to mix
+Mango juice
+Joghurt
That's it, I am sure there are other recipes, but that's how I do it...
http://www.google.com/search?q=mango+lasse
I tried it with other fruit juices (even with Coke) but Mango is the best...