Summary

My second go at a coffee cup design in Autodesk 123Design. See the first one here: http://www.thingiverse.com/thing:719140.

This one prints better with some support under the base of the handle. In Cura you can select to add supports from build plate only, as opposed to supports everywhere.

If you want to use it for real with hot coffee, I suggest you print with a "food safe" filament with a good thermal resistance such as Nylon or Colorfabb XT (the one I used here). PLA and ABS are not recommended as PLA could deform with hot coffee and ABS is not "chemically friendly" for food use (neither PLA is, by the way).