Just add sonic screwdriverWe at ThinkGeek love Matt Smith's doctor. He's fun and sad all at the same time—plus he's got that neat jacket and his cool bow tie. We're more casual, though, and prefer wearing t-shirts. And that's why this shirt is perfect! You'll look just like the 11th Doctor in this costume t-shirt. Pull it on, grab your sonic screwdriver, and hop in the TARDIS—we're going on an adventure! 100% cotton brown colored t-shirt with 11th doctor costume tee printed in the front.