For years, many archaeologists who uncovered ancient noisemakers dismissed them as toys. Museums relegated them to warehouses. But while most studies and exhibits of ancient cultures focus on how they looked, Velazquez said the noisemakers provide a rare glimpse into how they sounded. “We’ve been looking at our ancient culture as if they were deaf and mute,” he said. “But I think all of this is tied closely to what they did, how they thought.”