Carl doesn't mind the impermanence. "Nobody else but me," he says, "will ever make a dime off of my work."
As for Kirk, yielding to that transience has given him the inner peace that once eluded him. "I spent the first 50 years of my life investing in things I thought would last, and realizing that nothing really does," he says. "Thank God this is temporary. That's what saved me."
Left: "The Two of Us," a sculpture by carving team Sandis Kondrats and Sue McGrew