Jokari Ninja Pump Plastic Bottles, Black, 6;

While it's true that Jokari's Fizz Ninja hasn't been trained in the martial arts or stealthy covert operations and isn't exactly a world-class spy, this little fella is a true Guardian sworn to protect the fizz in any 2-liter plastic bottle of soda! The concept is simple: after opening the bottle, simply toss out the original cap and replace it with the Fizz Ninja. By squeezing the Ninja-shaped bulb until the sides of the plastic bottle are rigid and no longer compress (not for use on glass bottles) you've created an airtight seal and equalized the bottle's internal pressure. And, the Jokari Fizz Ninja's flip-top pour lid means that the steadfast Guardian of Fizz need not be removed for the life of the bottle. Pour, squeeze and repeat. For over 40 years, Jokari has held a special place in its heart for gadgets; today, they specialize in providing affordable solutions to common problems faced by consumers. From unique kitchen gadgets and household storage and organization solutions to their Healthy Steps kitchen tools designed to help with portion control and healthy eating, Jokari is committed to creating useful and often crazy looking "thingamajigs" that are fun, colorful and easy to use.