My cats hated theirs the first day so I only left it on for a little while at a time. Now they don't even know they are there -- they just got used to them and maybe yours will too. I'd just keep trying. One of mine was a little more difficult, I just gave him a new catnip toy right after putting the collar on. He played with the toy so long and by the time he was bored with it, he totally forgot about the collar.
Some cats automatically calm down when they feel a harness around them -- maybe you could try introducing her to this as well. And as with any training -- make sure to reward your cat when she shows the desired behavior. Associate the collar/harness with good things like treats, a kind voice, and petting. They do also make collars that don't need tags because they come with a weather-proof little id thingy that goes right around the collar itself -- it's built in.
If your cat absolutely won't learn to tolerate one, do you really have to let her outside? Can't she just be an indoor cat?
Some cats automatically calm down when they feel a harness around them -- maybe you could try introducing her to this as well. And as with any training -- make sure to reward your cat when she shows the desired behavior. Associate the collar/harness with good things like treats, a kind voice, and petting. They do also make collars that don't need tags because they come with a weather-proof little id thingy that goes right around the collar itself -- it's built in.
If your cat absolutely won't learn to tolerate one, do you really have to let her outside? Can't she just be an indoor cat?