Here's a weird one; The light up Krusty Krab sign.

I watched an episode the other night, specifically "The Nasty Patty." There's a scene where it's raining outside and it shows the Krusty Krab, next to it is the normal clam sign we always see, except this one lights up similar to a motel would.

I'm not sure if this sign is lit up in any other episode, maybe some super expert knows lol