Motor Tabs sports drink is offering a starter pack for $6.99 that includes a Specialized water bottle (with the nice little rubbery tip) and one packet of each flavor: Grape, Lemon Lime, Orange and Fruit Punch.
They’re the official sports drink of Ironman Triathlon World Champion Michellie Jones and Kenda Pro Cycling, and they work pretty good (read our review here).  Motor Tabs are effervescent tablets that self-mix and leave nothing settled at the bottom of your water bottle.  Good stuff, worth a try, especially since most shops sell these water bottles for $6.99 or more anyway, it’s like getting the sports drink for free.