LYWYGG 7X5FT Retro Diner Party Backdrop 50s Retro Rock and Roll Diner Photography Background Sock Hop Party Backdrops cp-640 is up for auction in Arts, Crafts & Sewing. The current bid is $1.00, 92% below the $12.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.