The Stanley Cup champs took a little off the top Wednesday - OK, a lot off the top - at their annual Cuts for a Cause fund-raiser at Royale. Now in its fifth year, the barber event benefits the Boston Bruins Foundation and the Floating Hospital for Children at Tufts Medical Center. “The guys get a free haircut and we raise a lot of money for a great cause,’’ B’s bruiser Shawn Thornton told us. “Granted, some guys look better than others afterward.’’ In all, 17 Bruins (and a few of the yakkers from 98.5 the Sports Hub) got shorn yesterday. Goalie Tim Thomas didn’t join in the fun, but he didn’t last year either and look what happened. Defenseman Adam McQuaid, who was goaded by teammates into getting a mullet last year, did it again yesterday. “It’s definitely an eye-catcher, and not in a good way,’’ joked McQuaid. “I wear a hat as often as I can.’’ Thornton kidded that the shave really doesn’t suit Brad Marchand. “He looks like an absolute critter,’’ Thornton said. “But I will say I think Nathan Horton looks pretty good with his head shaved.’’ Of course, what really matters is the money raised - and whether the Bruins can keep Lord Stanley’s Cup for another year.