want: Solar Powered Illuminating Waterbottle

So I was meandering through one of my favorite sites, uncommongoods, and saw these:

photo from uncommongoods

 Yep, these are water bottles, that also act as lanterns. I'm pretty much in love with this idea. So the lid has these LED lights that run on solar power. So you can take them pretty much anywhere. Living in a city, sans car, I don't get out hiking and camping as much as I'd like, but these are so tempting!