I call this the Man-Tube. It's a large, heated vacuum flask.
The top
- Screw off top (nothing dodgy like a pop-off)
- The spout gets opened by a button on the side
- Easy one hand operation
- Heavily concaved lid (AKA a facehole), to increase the amount of tilt before the cup hits your nose.
The flask
- Big. Real big. At least a litre (34 ounces)
- Wide enough to stick you hand in (to clean)
- Made of double vacuum glass. I want to see my drink.
- Tough. It should be able to stop a god damn bullet or be dropped from my desk.
- Internal heater. The inner glass must be getting heated, not the outside layer.
- Hole to get power from the base unit.
- Standalone. Does not require the base for use.
- Functions as the power source/adapter for the internal flask heater
- Has multiple inputs: USB, car-charger-thing, mains and perhaps even some batteries.