AdvertisementBy South Florida Sun-SentinelJul 15, 2010 at 3:17 amJimmy Buffett organized a free concert last Sunday in Gulf Shores, Ala. to bring attention to the Gulf Coast, which has seen business slip away since the oil spill began almost three months ago.Buffett sang "Mississippi on my Mind" at the show before 35,000 fans — yet Mississippi was missing from the official concert T-shirt and ticket logos, reports .AdvertisementVentura, Calif., artist MB Hanrahan designed the official T-shirt logo for the Jimmy Buffett and Friends concert.But Hanrahan goofed: Over a peace symbol mural with...…AdvertisementBy South Florida Sun-SentinelJul 15, 2010 at 3:17 amJimmy Buffett organized a free concert last Sunday in Gulf Shores, Ala. to bring attention to the Gulf Coast, which has seen business slip away since the oil spill began almost three months ago.Buffett sang "Mississippi on my Mind" at the show before 35,000 fans — yet Mississippi was missing from the official concert T-shirt and ticket logos, reports .AdvertisementVentura, Calif., artist MB Hanrahan designed the official T-shirt logo for the Jimmy Buffett and Friends concert.But Hanrahan goofed: Over a peace symbol mural with...WW…