I know you're all HHCMFs and probably don't see the point of a stationary bike but I figured I'd offer it here just in case. It's from the early 80s but it looks stereotypically 70s with metallic gold paint and a seat that could comfortably hold my grandmother. The resistance adjustment still works perfectly but the speedometer doesn't. I don't see the point of a speedometer on a stationary bike anyway. Your speed is 0, no matter how fast you pedal.
It's free to anyone who wants to pick it up!