Breast Collars › Circle M Style Mohair breast collar and w/fossil walrus flower concho Image 1 of 3 Image 2 of 3 Image 3 of 3 Circle M Style Mohair breast collar and w/fossil walrus flower concho $325.00 Out of Stock Gorgeous Circle M style Breast collar Fossil walrus ivory freeform cabs set on iron w/mohair done by Tammy Umbenhauer.. Out of Stock Added! Gorgeous Circle M style Breast collar Fossil walrus ivory freeform cabs set on iron w/mohair done by Tammy Umbenhauer..