This is also a rather late update as well, but fuck it.
Allow me to introduce the latest TF2 contribution that my BF and I made: RoBro 3000! A robotic companion that follows you.
It took a lot of work for both of us, but this little guy works very nicely in-game. He'll follow you anywhere, has his custom animations, and even glows in the dark. You could also paint his lights, too.
Please do your part and comment, vote up, and favorite our robot. The more support, the better chance it has of getting in the game. Also take the time to watch my videos that demonstrate the robot in action!