Haha, it seems we have a clever bunch here on SR - it appears to have been solved already! I think if you're doing something like this in future you should perhaps release one or two clues a day - that would maintain interest and get you a better return for your $30 investment in the prize due to increased advertising. Regarding taking part, I'll leave it to the folks who may be inclined to order from you in the future. It would be better for you if a potential customer wins. Libertas