"We make iron glow, and it makes children's eyes light up."
A farrier group in Northern Germany has a habit of making the news. They undertake creative fundraising challenges that leave people gasping, and help them raise money for children's charity.
But last week they outdid even themselves, when they assembled 13,000 horseshoes into a steel replica of one of Germany's great architectural landmarks, the majestic Brandenburg Gate in the nation's capital of Berlin.