Phra Rod (Thai: พระรอด) refers to amulets discovered in early King Chulalongkorn era inside a partially collapsed stupa in Wat Mahawan (Thai: วัดมหาวัน) in Lamphun Province. It was named Phra Rod because the Buddha image in the amulet matched the ancient Buddha image in the temple's Ubosot called Phra Rod Luang (Thai: พระรอดหลวง). Legends say that when the temple was part of Hariphunchai Kingdom, the amulets were crafted by Rishi to hand out to citizen during wars and the remaining of those were placed inside the temple's stupa. From Wikipedia, the free encyclopedia: https://en.wikipedia.org/wiki/Thai_Buddha_amulet Photo by http://www.thaprachan.com/show_pra.php?id=200426
A Thai Buddha amulet (Thai: พระเครื่อง), often referred to academically as "votive tablet", is a type of Thai Buddhist blessed item. It is used to raise funds to help the temple's operations. A Thai Buddhist monk will give an amulet to Buddhists as a "gift" after they donate money or offerings to the temple.