Sarah and I have just returned from a trip to Italy. While I was there, I experimented with a pinhole fitted to my D70s, with some interesting results. Overall I think the pinhole might be better suited to smaller scale subjects than the ones I shot, but I got some lovely effects, and I love the way people blur out when taking pictures of city squares.
Click the picture to go to my Flickr account, where there are many more such pictures. Coming soon: more Italy pictures!