She wanted the old rotary dimmer on the dining room 3way. Now I'm scr... uh ... out of luck.
Is it the rotary aspect she really wants? Or the push-in to turn it on and off?
If all she wants is the rotary, take a 3-way version of the rotary control and connect its travelers together. Then connect those paralleled travelers to the common of a normal 3-way switch right beside it. Then the normal switch travelers are connected in the usual way. Then you will have a dimmer with no on/off effect, and a real switch right beside it that can be oriented with up for on and down for off. That's if you have the space to add a switch next to it.
