Put 'zing' in your drinking water with Citrus Zinger.

Citrus Zinger Under $17. A clever and easy way to extract juice and flavor from citrus fruits and infuse them directly into your water bottle. Place the flavoring fruit you want to use in the bottom on the Zinger and just screw into the bottle. Fill with water to create delicious lemonades, limeades, and orangeades, etc. 

Here’s some info from the company: When life gives you lemons, give it the Citrus Zinger. It's so simple, so easy, and so tasty. Designed specifically for citrus fruits, Zing away with lemons, limes, clementines, and more. The Citrus Zinger offers an easy way to extract juice and flavor from citrus fruits and infuse them directly into your water bottle. Creating delicious lemonades, limeades, and orangeades, the Citrus Zinger flavor infuser is great for the active, on-the-go water drinker. Take it to yoga, the office, and around town. Enrich your water with vitamin C and flavonoids, and let the Citrus Zinger take you to that sunny, perfect day you long for, every day. 

http://www.zinganything.com/product/citruszinger