Great idea! Beau would LOVE that!
BUT, it STILL entails the time and effort needed to chop up a @#$%^&*! watermelon, LOL!
Just had a thought; (dangerous I know) if a person just cut the melon in half then using a hand/stick blender in each half then would only have to pour it through a strainer into the pitcher. Need to try my theory someday for a less mess and time saver...