Give your four-legged friend fresh water anytime, anywhere with the Hydro-Go by Drinkwell ($18). Designed for active dogs and dog walkers, this pet canteen cuts the mess with a fold-out funnel bowl that flips out for use and snaps in for storage. This innovative design also conserves unused water by simply pouring the water from the bowl back into the canteen. The Hydro-Go holds 12 ounces of liquid and comes with an extra-wide adjustable shoulder strap for comfort.