Every year I try to add something significant (e.g., car-stopping, jaw-dropping) to the build, and this year's Ghost Dancers came together nicely. Inexpensive, an hour to build the whole set, and another light source for the yard.
These are built on 5 ft metal fence posts ($1.86 each) painted white. All up for the seven of them was less than $40, and they can be dismantled and stored easily for next year.