Now that the greyhound lovers have derailed this thread - let us go back to the theme: "thinking about making my own tarot cards."
DR84 - do not use your perceived lack of artistic talent as an excuse or a crutch. I am NOT an artist, either, but when push started shoving I whipped out paper, pencils, and markers and fleshed out an entire deck in 30 days. Is it going to win any design awards? Hardly. Chutzpah awards- maybe.
If you cannot create a digital college deck (many have - with varied results), then my advice is to gather drawings, pictures, etc, from books, magazine, pictures you take yourself - and put them together as a workbook. In this way you have something to work off of, or show someone else to draw what you are thinking ('Use this picture of the dog lying on it's side, but put a small crown between it's paws'). In this way you can assemble cards for the different decks simultaneously, and work on whatever cards springs to mind when you see an appropriate picture. The point is gather, gather, gather imagery from any source you can, and when you feel you are ready to tackle this yourself, or find an artist to do it for you, you will already have a lot of the stuff fleshed out.