Here is what we came up with (actually my brother who is lead designer in cocktail engineering)
He created three cocktails which consist of body and hat (yes it's a red hat)
The hat is the same for all cocktails
hat:
Take 25dag frozen strawberry, put them in a strong mixer and cover them with vodka. If you like it sweet add 2-3 spoons of sugar. Mix them.

three different body flavors:
First on with cocos and pineapple taste:
"RepeatRepeat"
3 cl Cocos Syrup
10 cl Pineapple Juice
4 cl White Rum

Second with banana and pineapple:
"Easy Listening"
4 cl White Rum
1 cl Triple Sec.
2 cl Bols Banana
10 cl Pineapple Juice

Third with banana and mango:
"Rediscovery"
6 cl Pisang Ambon
2 cl Bols Blue
6 cl Mango Juice
4 cl Orange Juice

After mixing the ingredients for the body put them in a glass and pure the hat slow and carefully on top of it.
They all tasted great. The second ("Rediscovery") and the third("Easy Listening") are our favorites. The order and the intensive testing has nothing to do with this decision.
Unfortunately the pictures we took got lost due to crappy mobile phone software.
So - Try them!

Greetings from Vienna - Hope to see you at Linuxtag
Richard