Just looking quickly in my translation of the Roman Ritual, all I can find is the following (unofficial English of course, the Latin is what the priest would use):
- BLESSING OF GOLD, INCENSE, MYRRH
on Epiphany
P: Our help is in the name of the Lord.
All: Who made heaven and earth.
P: The Lord be with you.
All: May He also be with you.
Let us pray.
Accept, holy Father, from me, your unworthy servant, these gifts
which I humbly offer to the honor of your holy name and in
recognition of your peerless majesty, as you once accepted the
sacrifice of the just Abel and the same kind of gifts from the
three Magi.
God’s creatures, gold, incense, and myrrh, I cast out the demon
from you by the Father + almighty, by Jesus + Christ, His only-
begotten Son, and by the Holy + Spirit, the Advocate, so that you
may be freed from all deceit, evil, and cunning of the devil, and
become a saving remedy to mankind against the snares of the
enemy. May those who use you, with confidence in the divine
power, in their lodgings, homes, or on their persons, be
delivered from all perils to body and soul, and enjoy all good
things. We ask this through the power and merits of our Lord and
Savior, the intercession of the blessed Virgin Mary, Mother of
God, and of all the saints, in particular the godly men who on
this day venerated Christ the Lord with the very same gifts.
All: Amen.
God, the invisible and endless One, in the holy and awesome name
of your Son, be pleased to endow with your blessing + and power
these creatures of gold, incense, and myrrh. Protect those who
will have them in their possession from every kind of illness,
injury, and danger, anything that would interfere with the well-
being of body and soul, and so be enabled to serve you joyously
and confidently in your Church; you who live and reign in perfect
Trinity, God, forever and ever.
All: Amen.
And may the blessing of almighty God, Father, + Son, and Holy +
Spirit, come upon these creatures of gold, incense, and myrrh,
and remain always.
All: Amen.
They are sprinkled with holy water.