My O.C. started out as a ponified version of my Sonic persona so that I could have a pony-like icon for my fimfiction account. Since I enjoyed the Flutter Ponies from the original series, I decided to make her one. I already had a couple of draconequus O.C.'s, which meant that I didn't think much of my ponysa.
I recently decided that I should make her her own character. Took a few elements of Flutter Ponies and gave them a bit of a twist. She mingles with non-Flutter Ponies since she her good luck isn't working as well as her peers. The ponies had heard about Flutter Ponies from old stories and would buy the lamps she made simply because they believed she would charm her lamps with good luck. It would turn out that they don't receive any good or bad luck at all.
I decided to have it that she is talented with making, creating and designing lamps to make her job a bit different. It would also be a plot point for why a certain canon character would ask her to do something.
I may develop her a bit more if I were to write a fan-fic idea that I had recently spawned.