The Happy Puppy is a special limited item (was available from April 13, 2011 until April 21, 2011) that can be obtained by collecting 10 Paw Tokens (either by gifting or purchasing them for 2 Cooking Cash each) as part of the Pets Challenge (Fluffy Friends).
It can also be purchased using Cooking Cash (until May 10, 2011).
Effect: Click to animate. Earns 5 coins every minute.
In game description: " Who's a man's best friend? The answers is always - ALWAYS - your dog! Add the Happy Puppy to your collection and get the rewards from this loyal pooch. Give him plenty of attention and you'll soon be enjoying a much better day!"