Some examples.
There are things called “sacramentals,” the most common being Holy Water and the Rosary.
It is interesting that the one ritual most explicitly described in Scripture that fits the definition of a “sacrament” (An outward sign, instituted by Christ, to give grace.”) is the Washing of the Feet. It remains part of the Mass on Holy Thursday, but is not called a sacrament, at least in the Latin Church.
Is it true that to get this stuff; they take plain, ol' water and just boil the hell out of it??
Is it true that some of the relics the Church has, are rosary beads the ECFs used?
There is no 'holy Water" in the scripture...in truth what makes it "holy" is the water has had a "priest" pray over it and cast out the demons in the water.. an exorcism ..
You can actually make your own :)
http://www.wikihow.com/Make-Your-Own-Holy-Water