Choosing a pet ID tag for your Papillon is like buying an insurance policy – you do so with the faith that you’re never going to need it. The “possible cost” of not having a pet ID tag is more expensive than the “actual price” of purchasing the pet tag itself.
The kind of pet identification tag that you buy is vital, so take 5 minutes or so to think it through. Whimsically buying a collar tag because it’s inexpensive or pretty often ends up being unwise, in the long term.