Not every pony someone makes is a ponysona, though.
I have a ponysona and two OCs.
One OC is a unicorn named Mystic Mage who never grew out of the magic surge phase of infanthood. She works using her excess magic to charge and recharge enchanted items that need charging.
My other OC is a deaf earth pony named Silent Sky. She's a glass maker. I came up with the pony first, then sat around for weeks trying to figure out what her talent could be. Then, I looked at one of the glass humming birds I bought from Six Flags several years ago, and I thought "That's it!"
Neither of them is supposed to be me in the slightest, so I call them my OCs.
This is true- when I said that I had meant when everyone is actually talking about their ponysona, but just referring to it as "my oc." I myself have multiple oc characters, but I also have one ponysona. People tend to use the term oc for everything, when (imo) the correct way is "I have my ponysona, and many oc's as well." (of course, some people only have oc's, and don't have a ponysona.) I suppose I should've explained it better, my apologies.
Those are some cool oc's~ I like how they have some interesting talents, but also have a bit of a "flaw" as well, it shows that you can have some really awesome characters without them being perfect. My oc's are a bit like that, too- I have quite a few, so I'll just give a quick explanation of them:
Lyrical Charm: A blue Unicorn mare that absolutely loves music, and aspires strongly to one day be a DJ for a big name radio company. (a bit out of left-field for a place like Equestria, but I still like the idea anyway.
) Occasionally writes, makes music for and sings her own songs.
Thunder Spring: A green Pegasus mare that's always on the lookout for adventure- the longer and more risky it is, the better! Can hardly ever sit still, and is always trying to get one of her friends to go with her... but if she can't find anypony to do so, she won't hesitate to go off by herself.
Obsidian Quake: A black Earth Pony stallion, and also a demolition specialist. Although a bit reserved and quiet on the outside, once you get to know him you'll find that he has a heart to match his large build. Currently dating Strawberry Cream. Is also terrified of heights.
Strawberry Cream: A pink Pegasus mare. She loves to bake sweet treats, that she always insists are "made with love, because love is one of the most powerful magics of all!" When she's not baking you can find her practicing her flight skills, or spending time with her coltfriend, Obsidian Quake. Is also afraid of loud noises. (a bit ironic, these two that are dating and their fears XD)
Gear Spark: A brown Unicorn stallion and a genius inventor, Spark loves to build and create all kinds of new gizmos and gadgets. Sometimes he can get so immersed in his work, he'll forget to take a break and get some fresh air, or even eat at times. He has a rare muscle disease that makes him a bit weaker, but with the aid of his inventions he can do most- and in some cases even more- of what other ponies can do.
I even have a pic of them