Actually...

She's a napkin! 

I am reading that "Artist's Trading Cards (ATC) or artist cards began as 'a collaborative cultural performance' in 1996-97 by Swiss artist, M. Vanci Stirnemann.  In response to elitist art critiques and commercial marketing of art, Stirnemann exhibited 1,2000 small artworks in galleries.  These tiny works of art measure 2-12" x 3-1/2".  Stirnemann used this small rectangle as a canvas and created miniature artwork.  He insisted that the cards should never be sold.  Rather, they should be made with the intent of being swapped, ideally for other artist trading cards, but also for mail art, zines, embellished envelopes, artist stamps, hand-carved rubber stamps and other ephemera."