An older idea, but still eye-catching: paint your decorative pumpkins in different shades of the same color for a striking ombre display. (Mmmm, blue, my favorite...) Photo by Michael's, found via Michael's Stores on Pinterest.
When painting your pumpkins, there are so many options. This red and black Poke ball one by Allison Waken at All for the Boys is really neat.
Grab black paint, duct tape in a few colors, permanent markers and two plastic pumpkins to make your very own BB-hate pumpkin this Halloween. Tutorial by Karen Heffren at Desert Chica. She's also made a cool BB-8 from an actual pumpkin!