Spray-paint the rind a matte black and let dry. Use a spoon handle to scratch away paint to create stars, moons, and spirals. Add water and blooms. (via Pumpkin Decorating - No Carve Pumpkin Decorating Ideas - Good Housekeeping )
Mosaic Pumpkin: Cut up pieces of masking tape, stick them on your pumpkin, spray paint your pumpkin black. Let dry, then peel the masking tape off and you have a mosaic pumpkin! ~ Let the boys make their own designs- way better than carving!