I highly recommend that everyone have ID tags on their pets. Even if they are indoors, there is always the possibility that they get out. I see countless animals end up at the shelters that definitely belonged to someone at some point.

Pros: Cute

Cons: nothing

This tag allows the pet's owner to design that one-of-a-kind i.d. tag for his/her pet. After designing it, simply stick it in the oven, allow it to shrink, and the i.d. tag is done.

Pros: Allows the pet's owner to be as creative as s/he wants

Cons: None

ID tags are a must for all pets!

Pros: Cute

Cons: none

this is good for dogs, cats should stay inside

Pros: great for dogs

Cons: cats shouldn't wear collars

no matter how often he tries to let the cat escape, the tag lets anyone who finds her know that she is MY pet and I want her back.
quick easy fun for the kids to do to teach them responsible ownership.
short of sticking the spouse in the oven, this product will help keep the pet safe

Pros: fun for the kids to do to teach them responsible ownership

Cons: d*mn spouse keeps letting the cat out