Right Peter, perhaps some one put the website up here. Magnetized, different shapes if memory is correct. Reminds me ofI think there was a guy selling magnetic sunroofs somewhere ?
Portawalls for cars in the late 50s, early 60s. Whitewalls were extra when tires were purchased new. Portawalls saved some bucks, But all was revealed when they showed at gap at the edge. And weren't there fake cell phones and CB radio antennas?
Now we have fake everything, medications(really scary) jet engines, golf clubs, you name it, you can buy a knockoff.