Plan out the project and prepare materials for soldering!
Pin them to the jacket to see what would work best.
I decided on 8 strips for each side, ranging from 4-11 pixels in length.
Since the copper pads on 144 pixels/meter strips are on the tiny side, it's easiest to cut out and lose a pixel between each strip.
The Larson Scanner Shades guide illustrates this in the wiring step as well.
Cut pixel strips to desired lengths.
Keep an eye on the half way mark on a meter of pixels. Since the distance between pixels isn't equal, the strips can be desoldered or cut around.