Shimenawa are a common sight at Shinto shrines hanging from the torii shrine gate and above the entrance to the altar. Shimenawa are made of rice straw which is twisted and braided before being bound with string. A wood or wire insert is often used to cause the shimenawa to preserve its shape. Japanese will commonly replace old shimenawa at the start of each year (shogatsu). Shimenawa were in the past produced in the home by farmers using left over straw from the rice harvest.