Remember these?
Super convenient to steer the car with one hand. Haven't thought about them for years, saw one recently and now I want to get it. Many people say they're illegal, but it always sounded like an urban legend to me. Still I decided to check a little before I buy and turns out that it's indeed BS Suicide Knob - State Laws for Steering Wheel Knobs I also asked a cop friend. This kind of misinformation that people propagate without questioning bugs me. BTW my boat steering wheel came with a stainless steel spinner knob, without it steering the boat in chop as I'm holding on to the frame with one hand would be hard.