I don't have a juicer, but I have a food emulsifier (it leaves the pulp in). My old standby is 4-6 leaves of kale or chard, an apple or two, a banana and if I have a few berries I toss them in also. When you use blueberries, it actually turns a muddy brown which isn't really too appetizing. Guess if you left out the chard/kale it would be more purple
When I was a kid, my aunt used to take a raw egg, orange juice, honey and wheatgerm and blend it up and drink it for breakfast. It was actually not that bad, but now you can't eat raw eggs....