I decided to pull out the old set of Cokin A Series Pre-Shaped Frame Filters I've had for many years, never really used them back then, but wanted to mess around with using them to shape bokeh. The fiter kit consists of several pre cut shapes to use with the filter holder.
I chose to use the heart shaped frame and see how it will look. This shape would be great for some Valentine's Day Bokeh.
I'm planning making my own shapes soon.