And hey, if it charged my Wii Remotes, all the better.
I think that's the best idea yet. Nintendo doesn't have an official Wiimote charging cradle, but if they did why not have it be designed to look like ROB? Then it would not only serve a practical function, but would also be aesthetically cool to look at as well. He could also alert you if there are any new Wii updates or messages.
I think it would also be cool to have a charging cradle that looked like a Chozo statue. Then whenever you wanted to play a game you could be like Samus and take the fully charged and ready Wiimote from the statue's hands. Not likely to happen, but it would be a cool thing to have.