Above: Peyton Falkenhagen plays with an old-fashion toy during the event. The toy is made of wood and has hinges in its legs so that as Falkenhagen pushes it along, it walks.

Above: Peyton Falkenhagen plays with an old-fashion toy during the event. The toy is made of wood and has hinges in its legs so that as Falkenhagen pushes it along, it walks.

At right: Dave Butts shows his son, Nick, how to unhook two bent common nails at the nature center.