Just zest the outside of 3-4 medium size oranges. I have used a cheese grater (the really small holes, not the ones you use for cheese) in the past with success. Just don't go to far into the orange, when you start to see the white part of the peel, stop.
Lois: "Oh, my God! You can only play the piano when you're drunk!"
Peter: "Now that's not true! I can also vomit, fall down and make dirty calls to your sister when I'm drunk!"
Primary#1- Pale Ale
Bottle conditioning- Citrus Wheat
Drinking-Mild, Kolsch, Sweet Stout
Upcoming- Red Rocket clone, robust porter