Of course, it exists in Japan where there is no such thing as no such thing and the word “weird” has no meaning.
Indeed, this is a portable device designed for the sole purpose of cooling or heating a watermelon (does anyone eat hot watermelon?). At any rate, you can’t get this little watermelon space vehicle in the US, but you could try and hit up an importer like GeekStuff4U if you absolutely can’t live without one. No takers except this kid? That’s what I figured.