Sprinkle the graham cracker crumbs over the center of 4 plates.

Drizzle 1/3 of the fudge sauce over the crumbs.

Place a watermelon rectangle over the crumbs and chocolate on each plate.

Drizzle 1/3 of the chocolate fudge sauce over the watermelon.

Sprinkle the marshmallows over the watermelon and drizzle the remaining chocolate fudge sauce over the marshmallows.

Source:

Watermelon.org