Sony has built a Christmas tree just the way only Sony would – NFC enabled. Using NFC, the tree can pair with your NFC enabled phone, and you can take control of it. While you won't be able to make it walk around your house, you can change the color of the various ornaments.
The lights can be controlled on a per-color basis, or set to disco mode, making them alternate between a rainbow-range of colors.
Additionally, the tree also holds a portable NFC speaker, allowing you to make the tree take care of the Christmas singing for you.
Unfortunately, you can't actually buy the tree. We certainly would've gotten one for the office if you could. Instead, you're going to have to win the competition on the Sony Mobile UK Facebook page.