I also saw that Moto-Jug also on another forum. I'm still sticking with my self made cup holder on the right side passenger peg mount. I've recently found a 32oz Owala Free Sip insulated water bottle that works perfectly and is easy to clean. After 32oz it's time to stop.

Make sure any CUP that goes in your cup holder has a straw inside so you don't have to block your vision by lifting it in front of your eyes.