1. Cut a hole in the watermelon.
2. Bend and shape coat hanger like so...
3. Stick coat hanger into a drill to make a hand blender.
4. Stick the drill into the watermelon and blend that sucker.
5. Use a plastic cup to create a spout.
6. Pro Mode: Draw a cute face so it looks like your watermelon is throwing up.
7. Super Advanced Mode: Cut bottom of watermelon so it can stand on its own.
Voila! You just hacked a watermelon smoothie.