Pyramid scheme

That's cool. How do they grow it like that? Some sort of mold?

Yes, they use molds to grow the watermelons

http://www.instructables.com/id/Grow-a-square-watermelon/

I have said it before and I will say it again, these high-end fruit are a great way to round out the investment portfolio. Real blue-chip stuff. In seven-to-eight years you will see a great return on these melons.

Any Arabic speakers here? Does the sign say something like red watermelon pyramid?

Any Arabic speakers here? Does the sign say something like red watermelon pyramid?

yes. it's written pyramids red melon. it doesn't make any sense in Arabic though. they probably just used google translate.

actually it's written that it's not for sale