I was dabbling with coloured drinks and lighting last night - unfortuneately, I couldn't get the token curl on the lemon rind .
The only modification I did was to change the hue on this to make it a little more blue.
This particular drink is really only food colouring and water, but there really exists a cocktail called a Fuzzy Shark which is quite tasty - here are the ingredients.
1 1/2 oz peach schnapps
1/2 oz Blue Curacao liqueur
4 oz orange juice
1 cup ice