I hope we can have some fun with this. The ultimate fun would be if someone actually guessed correctly, and I had to give up the green. This is not likely to happen by chance. Even if there were only 100 nouns in the English language, there would be a 1 in 10,000,000,000 (ten billion) chance of guessing it right. And we all know that there are more that 100 nouns even in a small pamphlet, much less a dictionary, so I don't expect anyone to get this by rolling dice.
So feel free to guess, and invite your friends to do the same. I expect to never have to mail that money order, but will anybody step up to prove me wrong?