In the city of Cuenca, in Ecuador, you can buy metal crosses that are made to go on the roof of your house to bless the house. Each is made by hand, no two are exactly alike, and you can find them for sale at the "Housewares Market" in all sizes. As you travel around the countryside and even in the cities, if you look up you will see these charming crosses at the tops of the roofs of houses old and new. These two are quite small (about 10" tall) and I have them hanging in my kitchen.
In this picture of a house in Cuenca you can see one on the roof of the house.