Forest Den Sarah and David Trotter of Squirrel Design Tree Houses, Ltd., build treehouses that span the generation gap. The adults, they say, enjoy the treehouses as much, if not more, than their kids do. The perilous chain V-bridge and zipline that sends you careening into the woods make this one a dandy.
Rigamajig is a new large-scale building kit for children conceived for hands-on, free play and learning. This collection of wooden planks, wheels, pulleys, nuts and bolts allow children to follow their curiosity while playing, and explore concepts in science, engineering, and art.