Of course Batman has a lot of cool gear and gadgets – he’s rich and has them custom made. You may not have Batman’s resources, but you can have a knife that looks like Batman’s Batarang, which could add some serious coolness to your Halloween costume this year. The Batman 11.5″ Black Dual Blade Knife has two black-coated stainless steel blades. The knife has a steel frame, and the handle covers are black aluminum. The knife is 6″ closed and 11.5″ with both blades opened. There’s a (utility) belt clip on the back, too. The Batman 11.5″ Black Dual Blade Knife is $18.99 at Amazon.