Add to the blender:
3/4 cup water
1/2 peach (pit out, peel on)
1 carrot, washed and peeled
1/4 cup pineapple (fresh, canned or frozen)
1/2 cup watermelon cubes (fresh or frozen)
1 cup ice cubes
Put the lid on the blender and mix it up. Ours actually has a "smoothie" setting on it, so I just push the button and let it run the cycle. For the same effect, start the blender at a low speed and gradually increase it to high speed and let it blend for 1 1/2 to 2 minutes. Letting the blender run for what seems like a long time lets all the ingredients really get broken up and smooth.
This one is pretty kid friendly too because the peach flavor is strong enough to cover up the carrot, if you're worried about that :)
Who else has a Vitamix or other high-power blender? I'm working something and I'd love your help--email me or leave a comment and let's chat!