We gently weaned DD's dummy as well, just before two years. It was almost by accident, I forgot to give it to her for nap time and one day and wondered why she took longer to go to sleep, but since she didn't ask and wasn't upset I figured she didn't need it. So we went without for nap times the entire week before taking it away at night as well. First night she was absolutely exhausted after a big day and there were very few complaints. Second night she complained (not really upset) for 10 minutes, but was then fine. That was it, no dummy ever again. She asked once or twice, but not really fussed.

And we only ever gave her the dummy for sleeping, even as a very small baby.