Who doesn't have a soft spot for polka dots? These smoothies are colorful and playful -- and most of all, they're fun!
Paint jam circles on insides of drinking glasses with a small, unused paint brush. Let stand at least 20 minutes.
Meanwhile, cut 4 bananas into chunks; place in blender. Add 1 1/2 cups yogurt and 1 cup apple juice. Blend until smooth, adding 1 cup milk to thin as it blends. Pour into jam-dotted glasses; repeat with remaining ingredients; serve immediately.