A person can find christmas cards with cats at stores such as Urban Outfitters, Walmart and Rite Aid or online at websites such as Zazzle, Cardstore, Amazon and CafePress.
One could take a class at the neighborhood public library on how to make Christmas cards. Some hobby shops might also have kits available for making Christmas cards. Martha Stewart has a website which details how to make Christmas cards.
There are a number of online websites where one can find Christmas images to use on homemade greeting cards. Some of these websites include Google Images, Photobucket and Pinterest.
There are many sites in which individuals can purchase unusual christmas cards. The first place would be Hallmark where they have regular christmas cards but they also offer unusual cards as well.
One could find Christmas cards to send to family members at numerous online websites. Some of which include Hallmark, Walmart, and Target. Or one could find physical Christmas cards at their local supermarket.
There are many places where one can find Christmas cards online. One can find Christmas cards online at popular on the web sources such as Hallmark and Vista Print.
Christmas envelopes can be purchased online or in person. Depending on the level of uniqueness desired, one could get cards from the Etsy market for a highly personalized card. When short on time, any big box store, or pharmacy will have an aisle dedicated to more generic Christmas Cards that can be reviewed in person.
One could go to a store and look at store cards (Hallmark, or generic cards), and derive inspiration from them. Also, computer software exists that makes cards, so one could be inspired by that. Finally, D.I.Y websites could give ideas for making Christmas cards.
Ideas for Christmas cards can be found in a variety of places. Craft stores such as Michael's or Hobby Lobby often have scrapbooking and idea books that include ideas for Christmas products, including Christmas cards.
You could make your dad trading cards that have picturs of your family.
There are many museums that feature the history of Christmas, and most of them likely feature a section dedicated to Christmas cards. You could check out the National Museum of Christmas, Heritage Christmas, or the Canadian Museum of Civilization. You also might want to consider reading "A Brief History of Christmas Cards".
One can purchase nautical Christmas cards from Paper Cards and Cape Annie's Lighthouse websites. Alternatively one could buy them from Zazzle or Cafe Press, as well as marine charities.