Sip + Sea Cayman 30oz Stainless Steel Tumbler with Handle, Lid & Straw – Double Wall Vacuum Insulated Travel Mug 30 Ounces Seaweed is up for auction in Patio, Lawn & Garden. The current bid is $5.50, 72% below the $19.97 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.