Serve in colorful plastic beverage glasses. Attach large dots or stripe stickers (available at office supply stores) to the glasses, and let guests write their names on the stickers to identify their glasses.
For fun, rub the cut side of a lime or lemon on the rims of the glasses, then dip rims into shallow dish of coarse red sugar. Garnish with fresh cranberries on a beverage pick.
Always read labels to make sure each recipe ingredient is gluten free. Products and ingredient sources can change.