All of my designs are home grown. The only pattern I use is a very rough outline of a man's jacket.
The necklace is constructed entirely of found materials; the only cost of of the LEDs used for illumination.
This jacket lasted about 5 years; the only reason that I had to retire it was tht I had inavertently torn the clear plastic hem while performing metal work in my outdoor studio.
When I retired the jacket, all the seams were still in very good shape and shown no signs of unraveling.
By comparison, I had seen a $900.00 jacket at a high end store start to unravel at the seams while still in the rack.