Some people may do this, but this does not make it Catholic doctrine. It is like the matter of contraception. . Catholic doctrine is that such things do not have magical powers. The same guys who do this sort of stuff may not even go to mass, may be as ignorant of Catholicism as you are.
Essays for Lent: The Assumption
Essays for Lent: The Immaculate Conception
Essays for Lent: Mary Ever-Virgin
Essays for Lent: Praying to Saints
Essays for Lent: Indulgences
Essays for Lent: Purgatory
Essays for Lent: Confession
Essays for Lent: The Eucharist
Essays for Lent: The Mass
Essays for Lent: Baptism
Essays for Lent: Justification
Essays for Lent: Tradition
Essays for Lent: Scripture Alone
Essays for Lent: The Canon of Scripture
Essays for Lent: Papal Infallibility
Essays for Lent: The Pope
Essays for Lent: The Church
Essays for Lent: The Bible
Essays for Lent: The Trinity
Essays for Lent: Creationism or Evolution?