I haven't verified this by checking the other 40 pages, but I think Ice Cucumber Pepsi has been posted more times than anything else. Even more than the pancakes & sausage on a stick.
I have to say, I hate cucumbers, but I'd pay to try that cucumber Pepsi. And that green tea Coke while I'm at it. I'm always up to trying unusual carbonated beverages; they just look so delicious!