With all these celebrity deaths of late, it wasn't a question of if, but rather when the exploitation would occur. Usually though, I limit my exploitation of tragedy to a few off-color jokes in close company. But when snowboard company Neff put out a Michael Jackson tribute tee, well, it was the first time I sort of cared about Michael Jackson's death. Frankly it seemed absurd and needed to be mocked, especially since I run a site with the tag line "making fun of snowboarding." Then when Awesome Auger spokeman Billy Mays passed away Sunday, the opportunity was clear. Rip off Neff's design and make a Billy Mays tribute shirt.…