Do the Monster Slapdash
Wear on your shoulder to go as ET. When people are like, "How is that ET?" say, "It's a conceptual approach to the material. I'm not surprised you don't understand."
Kludge (klooj, n.): a clumsy, inelegant, improvised solution to an engineering problem. Kludge-O-Ween (klooj-oh-ween, n.): a makeshift, half-assed solution to Halloween. When it's too late to worry about finding the perfect costume, it's time to realize that ANYTHING can be a costume.