I'm not sure T-shirts, caps, etc... help drive business unless you are in the right area. If people would wear this stuff at casinos, local poker clubs, or similar places where degenerates are sure to be hanging out, then yes it might help.
JJ on rocking chair at Dollar Store wearing a BMR shirt...... My first thought would be that the shirt means "Bald Men Rule".
But, I get your point Djeff.