I picked up this fun experiment on photographing bubbles after mixing cooking oil and water from photographer Mike Moats . Through a pretty basic set-up with a clear glass dish and scrapbooking paper I got some really fun pics. My pyrex baking dish had some texture to the glass, so the images aren’t quite as crisp as I would like; but it’s definitely worth a repeat on a rainy day.
Check out Mike’s fabulous tutorial here… http://tinylanscapes.wordpress.com/2012/07/30/tons-of-fun-photographing-oil-and-water/