I have around 10 - 12 mario kart boxes for the wii lying around and it might be worth something to someone for display or if they're planning to sell the game and need a box.... It fits the game and wheel perfectly.
Nonetheless they're up for sale and if interested just send me a message including how many you want with a price. You can either collect or I can post to you but you would have to pay postage on top.
Pictures available on request.
Look forward to hearing from you.
Just added a general picture link from google images.