Beginning on July 17th, 2015, two new Made with Magic devices went on sale at the Anaheim parks. The device sold at California Adventure is the World of Color Sipper Cup. It's main function is to serve as a drink container. Consequently, you won't find it in the stores at CA, look for it where they sell food.
Even though it can be a bit hard to get your hands on one of these, I've found the base with the MWM components to be very handy and more versatile than I thought. Check out the article for more details.