Source: Superman's Girlfriend, Lois Lane #72 (1967) Type: Living object
In "Lois Lane's Aquaman Tricks", Lois does a story on a wheelchair-bound scientist who's found a way to control sea life with a special radio. He doesn't want anyone to know about this though because the technology could easily be weaponized. His fears are realized when gangsters grab his stuff and use sea monsters to steal Polaris missiles from a submarine. The only hope is for Lois to go out on a raft with Clark Kent (who's itching to change into Superman but can't) and use the radio to wrest control of the monsters. They get out there, and it doesn't work, so she tries to signal Superman with luminescent flying fish (above). Girl has an obsession and she knows how to manifest it in impressive ways.
But then this is a story with TWO fake Supermen, the other the fake Clark Superman makes from a pirate skeleton and a sea sponge so Lois won't notice he's gone.
Uhm... yeah... well... it worked, what more do you want?!