Go to http://www.snapfish.com/ and sign up for a new photo account. Upload your dog's phot and instead of opting for the 20 free prints, apply the credit towards the $19.99 dog leash. For that matter you might be able to choose something of the same or even less value.
Right now and through 2/19 you can get free shipping form Snapfish when you use the code PRESDAY at checkout.
One tip- use a Visa Credit card when you go to pay as Paypal has trouble charging you a balance of zero!
Stay tuned for a picture I will post when ours arrives....meanwhile here is the picture we chose to use.