Wow. Try this.

Mix about 3 ounces of this with a 10-ounce bottle of this.

I'm trying to avoid sugary soft drinks, so I haven't tried it with the full sugar version, which tastes slightly different. Also haven't tried it with alcohol, but I bet it'd be nice mixed with vodka or gin.

With or without alcohol, I would not recommend having more than one. Bzzzzzz!