While not too unusual it is cool, and what is even better is that it is cool to YOU. It is also how the Japanese get square watermelons - they just put the fruit in a box as it grows. They do this to maximize shipping efficiency since it all costs so much (a mostly ripe melon is almost a hundred dollars over there)
I regularly nuke my browser info at work, and so my youtube random recommendations on the homepage get pretty interesting. Got onto a pattern for a while of watching inventive limited space gardening, where vines etc are trained and watermelons are grown hanging in little hammocks, etc. Seems like combining the growing technique so you end up with blossoms near things that will easily support bottles as they grow, etc. with your bottling hobby could prove... fruitful.