Necklaces like madewell spiked bib necklace?

Does anyone know of any necklaces that are similar to the madewell spiked bib necklace (http://www.madewell.com/madewell_category/JEWELRY/necklaces/PRDOVR~35500/35500.jsp)? I am obsessed with it but it's sold out. Please post any links to similar necklaces or stores that might have similar necklaces! Thanks so much!