Mars Snooper Build Part 29 Upper Mask

I wanted to duplicate the Mars Snooper paint job from this Estes catalog page.
The upper section mask won't be an easy one.
The tips of the white triangle areas go to a thin point.





To find the centers between the fins, a piece of paper was pressed into the root edges of two facing fins. The root edges were marked and the paper folded between the pencil tick marks.
This guide was set back between the fins and the center line drawn at the top of the body tube.



Three Scotch tape strips were stuck down to the glass on my patio door.
A 1/4" thick black line was drawn down the center with a permanent marker.

With a knife a straightedge the strips were cut down the middle of the marked line.
The top half was cut to an long "arrow point". The strip on the left has one side removed.