For a university project on HCI and Unity games coding in C# I decided to 3D Print a Steering Wheel controller and to modify the game so that it focussed on the rotational input of the wheel.
Even the ball bearings were 3D printed. I was very pleased with the print quality for this.
The printer is a Geeetech A10 and while it is cheap the output can be very usable.
Theo is currently doing his BSc at Bouremouth University in Games Programming.