Sitting on the Pont des Arts, Paris
On one of these occasions, I noticed that there was a girl opposite us on the (often very crowded) bridge who was looking at us quite intently for a while. After about an hour or two she walked over to us and handed me this postcard — she had been sketching us. She just handed it to me, said we were very fun to draw, and walked away.
This sketch was done on May 15 2006 and is probably my favorite souvenir from my time in France.