Shell yeah! The Oyster Bar at Hard Rock Hotel & Casino invites you to “shell-ebrate” National Oyster Day with specials on Wednesday, Aug. 5 starting at 11 a.m. Just for the shell of it, enjoy $5 Oyster Shooters with your choice of vodka, tequila, Bloody Mary or beer. Or try a Half Dozen Oysters on the Half Shell for only $10. Specials are valid only on Wednesday, Aug. 5 while supplies last.