Do your plastic pumpkins look really, really fake? All you need is some antiquing gel, also called antiquing paint from the acrylic paint section. My standby is "burnt umber". Pour some of the burnt umber paint onto a paper plate. Add a little water and mix. Next, using a brush, add your paint to a small section of your pumpkin. Then take a dry paper towel and rub up and down your pumpkin gently