Now this is something we’re instantly placing on our gotta-have-it list. This snazzyÂ Tardis Backpack Doctor WhoÂ byÂ MadBoyWithBoxÂ isn’t just cool, it looks pretty practical to lug around too! You can use it as a backpack or a purse. He sells it on Etsy alongside a purse/bag version. Whovians of all ages would definitely love to have it. Now for the all-important question: Is it bigger on the inside?