Here's a thank you card I painted for one of my former coworkers.....
Watercolors on watercolor paper - 3 1/2" x 4 3/4" (NFS)
It's a very simple abstract painting but hopefully she likes.
If anything, it'll be a good excuse to visit our sister store and see how she's been doing since Corporate sent her there.
And in the end, it's not the size of the thank you but the fact that you're showing your gratitude that counts.