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 )
Black & Pink Pumpkins Paint regular or faux crafts pumpkins with black and pink crafts paint. (It may require more than one coat of paint, especially for pink.) Add some sparkle by sprinkling on matching glitter while the last coat of paint is still wet.
Metallic Leaf Pumpkins: Collect fallen leaves and spray paint them gold; let dry. Paint one pumpkin white and the other gold. When dry, use crafts glue to attach the metallic leaves to the white pumpkin, then arrange the pair together on your porch.