BlenderCap From Cruz ($129)
Blender drinks are a warm weather staple, but whether you’re at the beach, park or patio, you need electricity to make them. BlenderCap is a high-powered portable mixer with plenty of juice stored in the bank of lithium-ion cells found in its base. You charge with a standard USB connection and get enough power to spin the blades at 18,000 rpm for about a week’s worth of use. It comes with its own bottle, but it can be adapted to work with a selection of containers. Fire it up and you’ll soon be making Whiskey Sours, Margaritas and Gin Fizzes. Or, we suppose, you could also make fruit juice. 

www.cruzlife.com