Logitech's Accidental Red Steering Wheel

"When designing a new video game controller for Logitech, we sent drawings to IDEO's machine shop to have them knock out a prototype steering wheel to be made of rigid ABS plastic with a black rubber coating. But the shop was completely out of black rubber, which ... seemed like a potential disaster. So they molded the steering wheel out of red rubber, the only kind they could lay their hands on in the time. By chance, the client loved the brightly colored wheel ... inspiring the game maker to introduce a line of fire-engine red steering wheels."

Source: The Art of Innovation book, Tom Kelley, p110