Dana :)
Not entirely a mocktail, but at World Market they have these delicious flavored sparkling drinks (sweetened) that feel like cocktails if you add a lemon or lime! I'm partial to the Elderflower and Rose Lemonade. I love cocktails with elderflower, so having this kind of bubbly elderflower drink is great! They also have a Cucumber soda that's delicious (just add a sprig of mint and a smashed cucumber!)