When I was a kid just out of high school, I had a 55 Olds. I used a practice (fake) hand grenade for a shift knob on my column shift. It looked really cool. The fact that the weight of the grenade would unexpectedly pull the shifter down to the lowest gear, generally at speed, was the only down side to the installation. I did remove it after extracting my face from the windshield a few times.