The Cup is an item added to The Kitchen Update (Also see Microwave, Dishwasher, and Plate).
Usage
The Cup is an item used to hold drinks blended by the Blender. If you are finished blending a drink in a blender, you can right-click it with a cup and you will collect the drink in the cup. After drinking the drink, the cup will become an empty cup again. Shift and right click to place a cup.
Crafting Recipe
You can make a Cup using 7 Glass Pane.