Keyboard and Trackpad not included
Having measured the diameter of the target rule you want to use for this purpose, we will make a circle with the compass in the black foam and draw the shape.
We made a human fingerprint as wink
wink nudge as our logo (which you can see here http://www.bonapassa.com).
There we cut:
And we can also create other shapes, always within the lens size of our goal, which is not the same as the overall diameter. In the next picture, in the form of the smiley face, you can see the second smallest concentric circle.