I printed a batch of these postcards with this image I snapped in the Keys.
Driftwood in the sand that looked mysteriously like a seahorse. I inverted the colors so it looked like a seahorse in space. :) Thought this image was super appropriate for the "Transformative" mail art call.
"A house becomes a face, a picture of a cheesy pizza becomes a cloud, a cloud becomes a dragon."
Here's the original: