Painting The Pumpkins Several different techniques were used to paint the pumpkins. Dry Brushing. The exterior of the pumpkins were painted with flat black exterior latex paint. White latex primer was then dry brushed onto the surface accentuating the texture. Diluted acrylics (orange, yellow and green) were then used as a wash to tint the pumpkin to the final coloring. The interior of the pumpkins were painted with yellow spray paint.