Recordings of forests and rainstorms emanate from rotating speakers above the trailer, overlapping with music made by the robotically controlled marionettes positioned throughout the installation. (luhringaugustine.com)
One consideration, as in the case of these corner jacks, is that they can fold away above the trailer floor, or be removed from the trailer entirely to ensure that they don't ever drag on the ground when traveling, or get destroyed should the trailer ever bottom out (which they sometimes do). (livingbiginatinyhouse.com)