The Zoku Slush and Shake Maker ($19.95) comes in an assortment of bright, cheerful colors. Whether one chooses red, green, orange, or purple to brighten their day, the result is the same: chilled drinks in as little as 7 minutes. The gadget consists of an inner core that is kept in the freezer (for at least 8 hours). When the time is right, insert the core into the Zoku cup and pour in the ingredients. The beverage freezes with no more effort required than to occasionally stir with a spoon.