When looking through the 1494 "Beverage" images at Acclaim Images.com this A Drinking Cup with Straw was a favorite.
All of their pictures are hand picked, availiable in a number of formats, and you can even get custom prints and posters.

Description:
A Drinking Cup with Straw
A drinking cup with straw backlit with white light.

Some related terms for more images:
concept,  fresh,  still life,  beverage,  container,  pure,  healthy,  object,  sip,  fluid,  lifestyle,  fitness,  drinking vessel,  transparent,  thirsty,  clear,  st yiap,  plastic cup,  water,  refreshment,  suck,  tumbler,  beaker,  cold drink,  drinking straw,