Before the days of being post op and of recently being single, I would say that I understood where you are coming from.
I didnt wanna use anything that wasnt a part of me. I felt stupid and to me, it felt demeaning to have to use something (this was just a mental hurdle for me though, as I can understand how others can overcome this and enjoy using things).
As for considering my partner, thankfully she hated the thought of using something. We tried it once, and then we ditched it straight away. It brought none of us pleasure.
Being intimate with hands, mouths and genitals brought the best and the closest pleasure.