Your solution is the best. Louis drank off rats (not really vegetarian) while Duckula ate Blueberry pies. I thought of blackberry juice myself, but it's getting boring after a while, you also get a hotburn from it relatively quickly (if you are human, that is).
CONGRATULATIONS for winning the Contest! I KNEW you'd win! Sadly I havent voted but if I did so, I would have voted for you. You took your time and did an excellent traditional oil. I liked the concept of it very much. I recommend you to put a "critic request" for your work and see other artists' opinion.