Touched up my original model to make a more compact version. The handle is a bit shorter and closer to the cup. It also rides just a bit higher up on the cup. I like this version better. If you're left handed I recommend mirroring the model so that you aren't looking at an upside down smiley face when sipping your tasty beverage.
Again, I included an stl without the smily face as well, for those of you who are not fans of happiness.
Check out the Float that goes with this. It's stupid, but it's awesome!
Printed this version with grey ABS.