St. Nicholas Oil
Another famous example is St. Nicholas (Santa Claus), whose relics are found in Bari, Italy. There is an oil that drips from his tomb that is collected each year on May 9 and distributed to the faithful.
Sometimes it is called “manna,” and for “hundreds of years now, the manna has been collected, mixed with holy water and bottled in small glass vials decorated with icons of the saint.”