Does anyone else here make OC's into sims?

Yes. I created an O/C for the mini-series in my siggie. I have been playing with them since Sims2. Things got better for them in Sims3, as the family could jam together, plus once we got ST the second son in the family could pursue his musical career. In the books he was a struggling musician. I was busy attempting to create a singer Sim in the game using the RTF mod, figuring I'd just pay him using the MCCC mod. Then GF happened out of the blue. Yay! Found out RTF had also been updated to include a singer career that works nicely with GF.

Meet my O/C: This is her as a teen with her baby brother.
https://i.imgur.com/gFprO93.jpg

This is Spock at a rather unfortunate moment in my gameplay: (Yes, he died, my very first emotional death.) "He's dead, Jim."
https://i.imgur.com/Frx2tbK.jpg

The gray-haired man next to a blond fellow, both in tuxedos are their father and his namesake, Joe, Jr. The blonde lady with the fur neckline is their mom. Obviously, the one singing is the second son. the red-haired male in a tux with his back to the camera is the eldest in the family. Their Dad's hair was once that color.
https://i.imgur.com/US29A0T.jpg

This is my O/C and her identical twin boys at Erik's almost wedding:
https://i.imgur.com/8AoDTu9.jpg