Most of us are pretty lucky if we can cobble together our own costume for Halloween. If you’re Patton Oswalt, you get Mythbuster Adam Savage to build you an amazing costume. Savage put the entire thing together in just four hours using off-the-shelf crafting materials. As you’ll see in the video after the break, it’s pretty easy to make. It looked fantastic on Oswalt, but his daughter in her Spider-Man costume made the whole thing complete.