Nation

Like the insignias of Battle Beasts and the shirts you wore while playing with them, these old-school leather kicks change color with temperature, going from dark green to blue to deep purple to black -- the last indicative of the sub-freezing temps you'll brave visiting your bionic narwhal buddy in his arctic home.

Paranoid? Wake up to this portable alarm screeching at 105db the moment a maid/rapist/confused old person touches your hotel doorknob, ensuring that your sleep will be untroubled by cleanliness/rape/fresh-baked cookies.

Lizard's 30spf zinc oxide sunscreen bottles turn blue when exposed to UV levels high enough to burn you (or at least burn the exposed areas surrounding the goopy penis sketch your friends outlined on your back while you slept).

As you've always known on some level, displaying black on-screen uses slightly less power than white. Blackle is essentially Google gone dark, returning all the same search results while complying with the classic adage: "once you go black, the internet can save 750 megawatt-hours per year".

Search the Web, save energy at Blackle.com