That image is super adorable and the sentiment is one of my favorites. Both of these stamps can be found in the "New Stamps" section of the PPRS store.
Also, the January Sketch Challenge is still on! Here is this month's fabulous sketch:
And here is my take:
Remember, you have until the 31st to get your card linked up over at the PPRS blog. PPRS products are not required to play along and the winner, chosen at random, gets a $15 gift certificate to the web shop.