Not for myself, but I once built a machine using a kitchen aide mixer a dowel with a dildo on one end and a bearing on the other ( to attach to the blender blade stem ) separate speeds and that in and out motion! God that gal enjoyed the toy!!
Before my wife cuckolded me with her ex-boyfriend she almost exclusively fucked large dildos. I lost all confidence in my sexual abilities from being an adult baby with a small wee wee so I encouraged her to only fuck toys.