You can find some really easy designs to paint online, and it doesn't have to be in watercolor. You can use acrylic paints or even colored pencils. Heck, use crayons!
Take a picture of a pretty vine then trace it onto your paper using graphite paper or a projector. Color it in, draw a bow on the stem, and - voila! You have a personalized card.
In my sample below, I had a picture of an orange belly Chickadee. Using my projector that I can plug into my laptop; I traced it onto watercolor paper then splashed some color around. It doesn't have to be "picture perfect". A little running of color here and there makes a great looking abstract.
Have fun with it. Good luck!
PS If you're not into that sort of thing, scroll down for some popular Christmas cards selling on Zazzle.
Christmas Card for My Brother
Watercolor forest Merry Christmas Holiday Card
A elegant, nature themed holiday design. Part of a collection. With elegant text and beautiful watercolor forest design.
Watercolor botanical elegant corporate Christmas Foil Holiday Card
A elegant, nature themed watercolor botanical real foil gold, silver, rose gold corporate Christmas holiday card. With elegant text and beautiful watercolor forest design.
Peace Love and Joy Green Red Winter Greenery Holiday Card
This stylish "Peace, Love & Joy" holiday card features a modern and minimal green watercolor winter branch with red berry accents. The elegant text can be completely personalized with your choice of greeting, family name, year, and a custom message inside the card.
Cute Mouse in Santa Hat Christmas Card
From one of my colored pencil drawings. A cute little mouse wearing a Santa hat with a big bimble bomble on it.
