I cut out the shape of a butterfly as a stencil and each kid used a different color to add their fingerprints. This was then cut out and glued on to a blue piece of paper. The artwork was a hit and the families loved it!
It turned out very cute and was a nice momento of that class.
Another idea for fingerprint art and to allow the kids more freedom for their own expression is to have kids cut out their own stencils (this would be more appropriate for older kids) and create their own design.