Here is a cool tagging idea we got from Roni Chastain.  Roni uses dog tags for marking her gear. In an email to DIYP she explains:

… I have them [dog tag ] on my cameras, bags, tripod. I had my daughter put them on their sneakers, when they go out running…
… My thoughts have always been, if someone finds it and wants to return it, at least they know how to find me

I must say that this is quite a lovely idea. I mean, there are services like Lenstag out there that will store your serial numbers digitally for you, but they don’t look half as nice.

Yes, we know, this will not protect a camera from being stolen, but it will help it find its rightful owners should it get lost and found by an honest person.