I was processing images of a birch polypore fungus the other day, in the usual way, when I discovered that a small worm/grub-like insect was crawling along the rim. So I turned the image into an abstract backlit eclipse. The bug is at far right, crawling upward (and maybe in another spot, too).
Here is is on Flickr.
Meta: Pentax K-3, 100mm f/2.8 macro @ f/9, ISO 100, 1/160th of a second, key light as backlight, muliple exposures, composited in Photoshop