Teifoc allows kids to build with real bricks made from high-quality materials. The mortar is made from a mixture of fine sand and a corn-extract, easy to create by just adding water. Teifoc offers many sets that include all materials needed to build housing structures. The bricks are reusable after immersion in water for a few hours. After the cement is dissolved, the bricks are easy to clean with fresh water. Launch date: June 2010 (U.S.).