This 30-ounce tumbler is the one you want for consuming mass quantities.  Mad uses this nightly for his… er, beverage of choice.  It keeps things cold for hours, doesn’t sweat, and prevents frostbite of the fingers.
It even fits into the cupholder on Mad Gringo Family Truckster (yes, it’s the one painted in metallic pea), making the Bigfoot a veritable roadable refrigerator.
Comes with an easy to use “unbreakable” lid that should minimize spills and a huge pineapple skull logo that says, “I’m beach ready.”