Lance Armstrong: Materials: Yellow shirt; bicycling shorts; helmet; plastic syringes; Ziploc bag; red pipe cleaners; ketchup; wraparound sunglasses; yellow Livestrong bracelets; duct tape; black permanent marker. Method: Fill Ziploc with ketchup, attach pipe cleaners to the bottom of it, and tape the whole thing to your arm. Write “LIVESTRONG” in block letters across the T-shirt. Place pieces of duct tape on the arm sleeves, where sponsor logos would appear, and over the letter “V.” Overall effect: With one piece of well-placed tape, “Livestrong” becomes “Liestrong,” and voila, your topical costume doubles as witty commentary. It’s almost too easy.