I built a custom shutter filter yesterday to create my own bokeh shape. It was my first attempt, so I didn't take into account that the lens I was shooting with was a f2.8 and the filter I made was a little larger than that. This caused the custom bokeh shape to have half-circles depending on the position of the shapes on the picture. Sooo... gotta make smaller openings in the future. Anywho, here is how it went down: