Molly Rausch creates unique works of art based on stamps. From her site:

Each stamp painting begins with an actual postage stamp that is glued down to the paper. Then Rausch paints around the stamp, extending the scene, with watercolor and gouache. As a result, the paintings are quite small – usually around 3 inches tall. Everything is done freehand with a brush; she does not use pens or pencils. She does not paint on the stamp itself. And she does not research the subject, so the extension is completely invented and should not be tested for accuracy.

See more of Molly Rausch’s work at her website.