CAREFULLY, a woman with a headscarf was holding a decoratively painted oval object. After scrutinizing it for a while, she put it down gently. “It’s beautiful, but it seems fragile,” said the Inacraft exhibition visitor at the Jakarta Convention Center on Saturday two weeks ago. “It’s an egg.”

Indeed, the “antique” item was just an egg. But unlike a common egg, it was fully adorned. Diverse motifs were available, ranging from sim