The manner of using the Scapular was indicated by the Blessed Virgin .Since it is not the badge of a confraternity but simply a double imageattached to a single piece of cloth and suspended from a cord, investiture is not required. It suffices that it be blessed by a priest and worn by the one for whom it is intended. It may be placed in the clothing, on the bed, or simply in the room.
The only prayer is the inscription surrounding the heart on the reverse of the Scapular:
"Immaculate Heart of Mary, pray for us sinners now and at the hour of our death."
In large part because of this thread, I had three green scapulars blessed this past week and have now given one to my grandmother, one to my mother, and one to my father to keep in their bedrooms or on their person. I plan to pray this simple prayer three times a day: once for each of their intentions.
Both my mom and dad are long fallen away Catholics so I pray that our Holy Mother's intercession will be successful and God can work the same miracle in their lives that he had done for my resurgence to the faith.
Thank you for posting this, guys. May God bless you and keep you!