Here is the process of making the leather thorn necklace.
-2oz calf leather
-Tape (only used to hold the leather during the twisting process)
-Waxed cotton thread
I started out by cutting two strips of leather about 3cm wide.
Then cut the thorn shape (any length, shape or direction desired, they can be edited at any point) leaving a 1cm central strip.
Turn the leather in opposite directions from each end so the strip forms a spiral-like twist.
Once twisted, make sure the thorns are all free and pull the leather tight from end to end to insure there aren't overlaps in the spiral.
Twist the two leather spirals together in a helical fashion (don't twist this portion too tightly). Tie off both ends and the process is complete.