It isn't Gatorade, but Crystal Light makes these little packets (about 12 to a box, I think) that will "flavor up" a .5 liter (16.9 oz) bottle of water. They come in lemonade and Raspberry flavors. I took the raspberry to GenCon (a gaming convention) and it was actually pretty good.
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The OGRE
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If we aren't supposed to eat animals,
why are they made out of meat???