The National Museum of Ireland—Country Life, near the town of Castlebar, displays a plaster cast of an early 1900s jack-o’-lantern, known as a “ghost turnip.” ...

A plaster cast costs £16.46, the researchers said, compared with £39.23 for an Aircast brace, £215 for the Bledsoe and £1.44 for a tubular compression bandage, the researchers said. Professor Sallie ...