Some Kuman Thongs are soaked in 'Nam Man Prai', which refers to the extract of a dead child or person, who died in a serious and violent cause. This is rarely practiced today because the practice of using humans for consecrating oil is now illegal. Years ago, a famous monk was thrown out of the Buddhist Sangha for roasting a baby, he was then convicted, but later continued practicing the magic as a layperson after his release. Traditional Thai Kuman Thongs came from the children who died while still inside the mothers womb. Practitioners would then take these still born babies and adopt the spirits as their own children.
Ancient Thai manuscripts states that the correct method of creating Kuman Thong is to remove the dead baby from the womb of the mother, roast it 'till dry while undergoing a proper ceremony in a cemetery. once the rite is completed, the dry roasted body must be painted with 'Ya-Lak' (a lacquer used to cover amulets) and covered in a gold leaf. This is the main reason why the statue is called a Kuman Thong (Golden Baby Boy).