Buying a pet identification tag for your Kuvasz is like purchasing an insurance policy – you do so with the faith that you’re never going to use it. The “possible cost” of not having a pet ID tag is more expensive than the “real price” of buying the pet tag itself.
The kind of pet ID tag that you buy is important, so take five minutes or so to think it through. Whimsically choosing a collar tag because it’s low cost or cute often ends up being foolish, long-term.