Watermelons can be refreshing on a hot, sunny day, but then again they’re heck as heavy to lug around. Of course, they taste best when chilled, which is why the Rolling Watermelon Cooler you see here is such a hoot – imagine rolling your precious juicy cargo all around in a cart wherever you go, making it look as though you have a deprived childhood or something. Bear in mind this ain’t no concept, but an actual contraption from Japan which will cost you a neat $230 to import it Stateside, boasting a cooling cartridge which can be juiced up through a car adapter. Not only that, it can also heat up the watermelon, destroying most of the vitamins in the process during winter.
Source: Craziest Gadgets