I rough cut strips around 1/2" longer than needed, then cut them into different widths along with slants - making sure I stayed within a min and max so I'd have at least 4 but not more than 6 per unit when done.
I started with sewing two together to have enough, then pressed and sewed a 3rd, and then a 4th. At that point I checked and had a handful that were long enough. Sewed a 5th to the rest and checked, and had a handful that needed one more strip. Did that and in the end, I had one strip left over, so that worked out very well!
Here they are before trimming
And after
And my pile of trimmings.
