DETROIT LAKES, Minn. — Just off the beach in the heart of Detroit Lakes Thursday, volunteers put the finishing touches on one of the trolls that have been very public the last few days. World renowned artist Thomas Dambo is the heart and soul behind this recycling art. “Over the last decade, I have built 138 giant recycled sculptures in 17 countries and 19 American states all across the world. And I make them in a treasure hunt, so I hide them,” Dambo said. Just outside Detroit Lakes, deep in the woods, a treasure hunt is about to begin next week, during which residents can search for Dambo’s trolls. The trolls are made of recycled wood and other materials from all over the world. They are now in Detroit Lakes, so we went on a hunt. People can start looking for the trolls in Detroit Lakes on Monday, June 10. Until then, their locations are top secret.