Sipworks Stainless Steel Coffee and Wine Tumbler Set: Double-Wall Vacuum Insulated Spill-proof Travel Mug Metal Cup with Lid, Set of 2, Mahogany is up for auction in Home & Kitchen. The current bid is $6.00, 87% below the $44.98 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.