Refurbished cases:
iPhone 11 Pro
https://www.ebay.com/itm/274252699283
iPhone 11
https://www.ebay.com/itm/274242317858
iPhone 11 Pro Max
https://www.ebay.com/itm/274244102846
Cases in OEM Package:
iPhone 11 Pro
https://www.ebay.com/itm/274138781750
https://www.ebay.com/itm/274138791152
iPhone 11
https://www.ebay.com/itm/274252972173
https://www.ebay.com/itm/274252937307
https://www.ebay.com/itm/274252905117
iPhone 11 Pro Max
https://www.ebay.com/itm/274127483186
https://www.ebay.com/itm/274251401445