Newton sculptor Nancy Schon is the creator of the famous “Make Way for Ducklings” sculpture in the Boston Public Garden. But she’s made other sculptures inspired by children’s literature, too, including bronze versions of A.A. Milne’s Winnie-the-Pooh and Eeyore, both of which reside on the Children’s Patio at the Newton Free Library. On Saturday, Pooh and Eeyore made way for their friend Piglet, who was installed at a public ceremony. Piglet was commissioned by Newton resident Sonja Calabi to honor her brother who died when he was a boy. “She thought her brother had characteristics just like Piglet,” Schon said at the ceremony. “He was timid but brave and he was able to conquer his fears.” The 2-foot-tall Piglet wears a scarf and buttoned-up sweater — the buttons are actually washers — and his eyes are made of bolts. He appears to be whispering in Pooh’s ear. “What’s his secret?” the sculptor was asked. Schon wouldn’t squeal. “It’s a secret,” she said, sternly.