A keyhole, the way I remember them from when they were still in common use. All smooth with no sharp corners! Export it to PNG with the dimensions of your 16:9 video project, such as 1920x1080 or 3840x2160, and use it as a peephole mask with your favorite video editor. This is the non-transparent version of the mask. Here’s an example of using it in a video editor: http://i63.tinypic.com/178dft.png
An HD Keyhole Mask, non-transparent free icon was designed by AdamStanislav for icons Png and presented to its users.
AdamStanislav
2/5/2018