Cheesecaking a Defensive Robot

[Type]

Is there anything against the rules for adding parts onto a robot to block shots? For example, adding chains so the ball hits it and falls down, something like that which shouldn't violate rules regarding blocking vision tracking. We are thinking about bringing parts to cheesecake our third alliance partner (assuming we are a captain again), and want to make sure there is nothing against the rules for adding a blocking attachment to a breaching style robot.