This replica of an actual lobster trap bouy is made out of driftwood from Cayucos , California.  It is very light and hung on sterling sticks and measures 3 1/4" long and 3/8" in diameter.  The actual wooden buoy is 1 1/8" long and hung on a 20 inch sterling ball chain.

Black White and Rex Lobster Trap Buoy Necklace