Shutterfly has a nice freebie available this weekend. You can get a pet ID tag for free and you will just need to pay a few dollars shipping.
Choose from several styles and the shipping adds about $3.99.
If you prefer a large photo print, you can get a 16×20 for free as well with the same coupon code. Or you can get two 8×10 prints! You will need to pay shipping on your print. It tends to be very reasonable- $2.99 or so I believe. I ordered the large 16×20 and picked up a frame at Hobby Lobby and it looks gorgeous.
Use code: AFFCHOICE through 2/8.