This bottle, also called the “choice-enabled soft drink bottle” lets you choose to insert into your drink from a combination of flavors, allowing for plenty of odd combinations and colors. (Fun: With each flavor there comes a color, right? So if you mix ’em all up, what’s it going to look like? Yuck.) To spice things up a little, an extra button gives you an extra shot of caffeine.
Sounds like one of those off things that’ll looking very retro-futuristic in, err, ten years.