Those corn on the cob suckers, whatever they’re called. And there’s also the toothpick (for bite sized morsels) and those long pronged things that you use with fondue.
And skewers for when you’re feeling in the mood for shish kabobs.
And grapefruit spoons with the little saw teeth on the edges. Hmm, if sporks the bastard child of a spoon and fork, maybe we should call grapefruit spoons spifes since they’re sort of a combination of a spoon and a knife.
There are tons of other utensils that the OP didn’t mention.
How about ice tongs, sugar cube tongs, butter knives, cake servers, seafood forks, nut crackers, and nutmeat picks? Those implements aren’t common in my life, but for some people, they probably are.
I take it we’re not even going into the incredible variety of implements used during the Victorian era in England and during the British Raj. They had such things as bread forks, mango forks and spoons, etiquette spoons (which look like a pretty good idea for modern use, too. I wonder why they went out of style?), moustache spoons, and marrow scoops.
It now occurs to me that I and a friend once decided to make kebabs, but, the cutlery drawer not being as well stocked as it might have been, used tent pegs to keep the stuff together. So, would tent pegs count?
Someone has come up with a fork with a sharpened edge that you can use for cutting food, as people already do with the edge of a fork. It’s not the same as the sporfe above, and I think it’s made of metal.
I’d be afraid to use the damned thing – I’d probably split the corners of my mouth.
In a similar situation, but with no tent pents handy, I used spaghetti noodles. Since it didn’t actually work, I don’t know if it counts, but they made a pretty heroic effort that should be recognized.