sand shark sandsharkanchor.com premium floating anchor marker buoy by sandshark. high visibility markers for anchors at the beach, lake, shallow water, sandbar, find your anchor, prevent accidental hitting or stepping on anchors neon green is up for auction in Patio, Lawn & Garden. The current bid is $1.00, 96% below the $24.99 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.