If John Mellencamp had his way, all neon & fluorescent signs would look like that one. Here are some other examples of what happens when the gas leaks or the ballast craps out.
[Found in here, and there’s more. I was going to add some to their collection, but the site requires log-ins with passwords and stuff so I passed. Their loss.]
BTW, this is Mellencamp’s best song IMO, and the line is “That’s when a smoke was a smoke.” Not a spoke. Not a sport. Not a spote. Not a spork. A smoke.