When it's too tough to figure out what to write in a card, use this resource for some help.
Sympathy Messages and Quotes
Clueless as to what to write inside a sympathy card? This pin gives some excellent, sincere ideas.
Trying to figure out what to write in a sympathy card? Sympathy card messages are difficult to write. Use these words of sympathy to show your condolences to your friend, relative, or loved one.
Greeting card - Paw prints on your heart - sympathy, loss of pet
Sympathy Cards | Verses for Sympathy Cards That Express Your Deepest Condolences
I've had clients asking for pet sympathy cards - this one is a great example.
CAS Card Inspiration
dog Sympathy Card by normagolden
STASH it until i think of where it belongs
Sympathy Card wording
Handmade Card Ideas
Creative Papercrafts - Stampin' Up!: Just Add Ink 71 - Sympathy Card
Appropriate Words for a Serious Illness Card http://grammar.yourdictionary.com/style-and-usage/appropriate-words-for-a-serious-illness-card.html