Recently it's not been great for any long exposure work, a bit too bright with featureless sky's, so I've been popping a 4" crystal ball I picked up on Ebay in my bag and experimenting with it, using my 50mm f1.4 to loose the background and getting in close to capture the main body of image within the crystal (which it turns out is surprisingly sharp).

The photo's below are a single image, however I've taken the area in the image seen through the crystal and flipped it on it's head which seems to work better and the overall effect was more like what I wanted to achieve, rather than leaving you looking at a blurred background and upside down focal point.

Click on the images to enlarge.