A brassiere sash made of two overlapping pieces of transparent thermoplastic polyurethane. The circumferential edges of the overlapping pieces are joined with high frequency energy to form a central cavity between two overlapping pieces. The central cavity is filled with liquid, perfume and ornamental...http://www.google.co.uk/patents/US6283821?utm_source=gb-gplus-sharePatent US6283821 - Brassiere sash