Go green this Halloween with a DIY Solar Powered Jack-O-Lantern. Aside from the pumpkin, you will need a carving knife, a Sharpie to design a face, and a solar-powered garden light. You can get all the instructions to make your own and remember to go really green by munching the roasted seeds, baking a pie and tossing the pumpkin on your compost pile. Make has lots of other ideas to spice up your Halloween, including a mag with 40+ projects.