I'm so excited to share that I've posted some original illustrated cards for sale on Zazzle.com! There are the four birds you see above in the proofs, as well a card with all four of the designs.
The thing that's great about Zazzle is that there is no minimum order - you can buy as few (or as many!) as you like. And they have good volume discounts, too - even an order of 10 cards (and they don't have to be 10 of the same card, either) is eligible for a discount.
The cards are blank inside and printed on bright white quality paper, perfect for sending holiday greetings!
You can visit the store here!