Well, it appears that one popular method is to get a giant, industrial-sized backhoe and attach a huge iron ball to it via a chain. Raising the backhoe's bucket causes the ball to rise above the ground, and thereby becomes a delightfully effective instrument of semi-controlled mayhem, suitable for all manner of civic renovation including the removal of insulting statues.
I'm certain that your local neighborhood backhoe dealer can put you in touch with the appropriate licensing and certification agencies that will get you squared away as a legal wrecking ball operator in no time. :-)
