I have been playing with the pixel blender photoshop plugin all night. I have to say it is the coolest filter/plugin for photoshop I have seen yet.
Note: I did not take any of these photos. These are photos I have pulled from my google+ stream, and applied the effect to the images. Most came out so-so. Some came out amazing. These are some of my favorites produced from my experiments.
Each of these took ~5 minutes to make