Yum! I love the idea of adding frozen strawberries.
I get these flavored water drinks once in a while - the kind that have no added sugar, or fake sugar, but just the hint of berries. I could float some frozen blueberries or strawberries (or both) in it. YUM!
Also, I'd found a fizzy pomegranate drink for my mom - which I haven't seen since that one time. But it's actually made by V8. It was pretty tasty!
Pomegranate seeds in sparkling water - that would be fun too.