cyeollo Mermaid Dog Halloween Costumes Sparkly Cosplay Dog Clothes Outfit for Large Dog Birthday Party Dressing Up Pet Costumes for Dogs Girl Size XL X-Large Mermaid is up for auction in Pet Supplies. The current bid is $1.00, 97% below the $30.00 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.