So I was a little intimidated when I decided to attempt this watermelon, but it actually wasn't that difficult. First you lay the watermelon longways and make a small diagonal incision on one end (about 1 inch in at the thickest part) to allow the watermelon to stand up at an angle without support. Then draw the mouth on the other end and cut using a pairing knife. Work the knife inside the fruit until you are able to remove the triangular portion (reserve fruit to cube for later use). Remove most of the remaining flesh by using the combination of the pairing knife, a larger knife and a spoon (this youtube video was helpful for this part - http://www.youtube.com/watch?v=jb_vRwCHd40). Leave about 1/4 of the fruit in the melon. Use a vegetable peeler to shave off 1 inch of the green skin around the edge of the mouth opening then use a pairing knife to create the "teeth". I filled it back up with some of the remaining cubed watermelon, cantaloupe, strawberries and blueberries. Also pin two blueberries on with toothpicks to create the 'eyes'. Definitely a fun way to serve fruit!