"Sorry sir, that's not a wheelchair... it's a tank"

Source: Gizmodo.com

Possibly the greatest Xmas gift of all time, Jim Starr received the Tank Chair from friends. Unfortunately it's size and weight put it far outside the legal definitions of a wheelchair. So, like Segways it is restricted to use only on private land as it's illegal for use on roads or on pavements.

Of course, if Jim decides to mount a turret and some armour on it he could probably take it wherever the hell he wants.