Blessings of objects that can be done by a layperson:
Chapter 11: new home (n. 661)
Chapter 21: “the various means of transportation” (n. 854) objects mentioned are: bridge, highway, street, railway, airport, motor vehicle, airplane, boat and ship.
Chapter 22: “boats and fishing gear” (a USA blessing, n. 880)
Chapter 23: “technical installations or equipment” (chapter 23, n. 901) objects mentioned: “any kind of technical equipment”, “a central energy source or power house”, “a reservoir or water system”.
Chapter 24: “tools or other equipment for work” (n. 921).
Chapter 25: animals (n. 943).
Chapter 26: fields and flocks (n. 968)
Chapter 27: “seeds at planting time” (a USA blessing, n. 988)
Chapter 30: meals. “1030. Christians, whether alone or with companions at table, say grace before and after meals to thank God for his goodness …”. The First Plan has, before the meal:
“The one presiding then signs himself with the sign of the cross (a priest or deacon also makes the sign of the cross over the food) and says:
Bless + us, O Lord, and these your gifts …” (n. 1033).
Chapter 46: a scapular. “1488. The blessing and conferral of a scapular should, if at all possible, be carried out in a communal celebration. Whenever the conferral is a way of receiving members of the faithful into a confraternity of a religious order or institute, this reception must be carried out by a member of that institute or else by a minister deputed by the competent authority of the institute.” Objects mentioned: scapular, habit.
Chapter 47: an advent wreath (a USA blessing, n. 1516).
Chapter 48: a Christmas manger or nativity scene (a USA blessing, n. 1546).
Chapter 49: a Christmas tree (a USA blessing, n. 1575).
Chapter 50: “homes during the Christmas and Easter seasons” (a USA blessing, n. 1600).
Chapter 53: food on Saint Joseph’s table (a USA blessing, n. 1681).
Chapter 54: “food for the first meal of Easter” (a USA blessing, n. 1706).
Chapter 57: a gravestone or monument at a cemetery “(November 2), Memorial Day, or on the Anniversary of Death or Burial” (a USA blessing, n. 1737).
From Book of Blessings, Liturgical Press, Minnesota, 1989, ISBN 0-8146-1875-8.
I have not completed going through the book yet and may add more chapters later.