Echo what svt says. I assume your lodge has tax exempt organizations status. You will want ot show a copy of the form that gives you that status to any would-be donors as then their donation is tax deductible. Also, make it clear to the possible donor that their business name and the donation will be displayed prominantly in all your raffle tickets, the day and at the event drawing, etc. Also, offer to provide or hand-out any flyers or coupons the donor might have.
Businesses will donate if they think they can get something back. Some will donate because they like the cause or the charitable org, but all will donate if they are convinced they will get back more than they give.
TJR