Bokeh is a fun effect to play with in photos (the repeating shape in the background – it’s formed by blurred light taking the shape of the open shutter). There’s a fun related trick I’ve only tried once, where you cut a shape into a piece of dark cardstock or cardboard and make a lens cap with it so the light is forced to take that shape in the resulting bokeh… it works best with a light source that has multiple points, like sun reflected on water or the lights on a Christmas tree.
This photo was taken on the edge of Mill Pond in Saline, Michigan. When I lived in Saline, I walked most evenings over to the parks, looking for things to shoot.
Exposure: 1/400 seconds
Focal Length: 250mm