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Candy Buffet Bags... These "cheap" bags are actually "expensive". A standard paper bag can hold 2-3 pounds of candy. Your guests don't know when to stop adding to their bags. So a bag like this will wipe out your candy bar FAST! Papermart.com sells 1/2 pint boxes that will limit your guests to 1/3 lb each, they also sell a 2.5 x 2.5 x 9" gusseted cello bag that holds about the same. each is under a dime each.
I like the idea of the uplit martini glasses filled with colored candies - more elegant than most of the candy centerpiece ideas on pinterest