Red cheap soap and real seeds if you have them or use black foam or buttons.
Cut contact paper in half circle. Cut out backing leaving a part for the rind. Have your child put red tissue paper on sticky part, when full, remove the rind paper for the green part. :)
Watermelon Play dough
We are painting in the bathtub :)
Black WASHABLE ink pad
red and green construction paper
foam shapes (I plan to take a sheet of foam and cut my own shapes)