Vancouver, WA-based designer and programmer Nathan Pryor asks, "What do you get when you combine a pumpkin with the classic video game Tetris? Pumpktris! Fully playable, embedded in a pumpkin."
Oh, and get this: the pumpkin's stem acts as the joystick.
Check out the video to see the project in action:
See the full build process and all the technical aspects at Nathan's site, HaHaBird: PUMPKTRIS