This is a necklace i made recently using a Falling Whistle. Falling Whistles is an organization dedicated to bringing aid and awareness to the plight of war affected children from the Congo (the longest running war). The whistle is a symbol for peace, yet children too young to hold guns are often sent to the battlefields with only a whistle. The necklace consists of hematite, black pearls (dyed) repurposed bullet casings with pearl tips, a silver & onyx clasp and a silver Falling Whistle.
Check out their site and their amazing organization.
http://www.fallingwhistles.com