I stumbled upon this peculiar sight while googling 'watermelon' today. Ericahi
I did a little research and apparently Japan has a 'space problem' and now grow watermelons in square glass boxes whilst growing on the vine. They sell for approx 85$ US EACH! The whole thing flabbergasts me to be quite honest. I do see the practical benefits, but it seems a tad extreme. What do you think?