1. In a blender, with about 1/2 cup water (or more, if needed), blend the romaine until very smooth. Even a small blender will do this well if the greens are blended first.
2. Add the banana and frozen mango and blend until smooth. Serve in a punch bowl or your favorite cauldron, if desired.
3. For the witchy effect (beet hand), you'll need a latex glove. Rinse the inside of the glove well and fill with water and the beet juice. Make a knot in the top of the glove, or tie shut with a rubber band.
4. Freeze for several hours or overnight, until frozen solid. Run glove under hot water for a second or two and then peel the glove from the hand. Put in the center of your witches brew.
Source of recipe: I wrote this recipe. Raw on $10 a Day (or Less!)