I made something similar... instead of the buttoned flap I used two different colors for the main chains then made another chain in a third color and wrapped it tightly around about 4-5 inches of the other chains.
Homemade "Chain Loop Scarf" This beautiful scarf/necklace is not something you see everyday, it is sure to turn heads. It can be worn as a long necklace or as a scarf when lopped around twice. You won't need to worry about tangles because the yarn handle keeps all the strands together. It is the perfect piece to dress up any casual outfit. It is so easy you must try it!