An 18th century statue of the Lord of Patience in San Bartolo Cuautlalpan, Mexico has human teeth, specialists restoring the artwork have discovered through X-rays. From BBC News:
"The teeth were probably donated as a token of gratitude," suggests head restorer Fanny Unikel. Elsewhere in Mexico, parishioners are known to have volunteered their hair to make wigs for saints, as well as clothing or money. But the teeth and nails of statues are usually made of bones and animal horns. "It's the first time human teeth have been found in a sculpture," says Unikel.