Fishing rods, tennis rackets, baseball bats, guns -- a year from now, you'll probably be able to transform your Wii remote into a car and zoom around your living room. But are any of the shells and add-ons necessary? Are they useful? We're curious what you think. Which ones (if any) do you want to try, or even buy, and which do you find completely superfluous? Obviously, all Guitar Hero-related paraphernalia is exempt on grounds of being both awesome and necessary. We're talking about straight-up shells here.