Hi, I suppose that one way would be to put it on and leave it, she won't like and will probably try to get it off but she should settle down eventually. You might want to read this thread.....
http://www.theanswerbank.co.uk/Animals-and-Nat ure/Question302040.html
I have two kittens now and they are both chipped the elder one wears a collar, but I make sure it is loose enough to slip over her head easily should she get caught on something. I would leave the collar's off completely, but I like the idea of them being tagged as well as chipped, as this lets people know they have an owner without a trip to the vets to have their chips read.
Hope this helps
Lisa x