A constant-air inflatable decoration has an inflatable body defined by walls and an inflation port formed with one of the walls. A blower is located at the inflation port and incorporates a blower fan adapted for generating continuous airflow from an outside of the inflatable body to an inside of the inflatable body. The blower operates to continuously force air into the inflatable body to maintain an inflated three-dimensional shape. A projector is mounted adjacent the blower and faces inside the inflatable body. The projector incorporates a light source and a projection lens configured for magnifying and casting an image onto an opposite display surface of the inflatable body. The projector resides within a direct path of airflow generated by the blower fan, thereby continuously cooling the light source of the projector during operation of the blower.

Systems and methods described herein relate to using silver-coated twisted-coil polymer fibers to adjust the shape of inflatable structures, such as to provide an adjustable curved projection screen. In one embodiment, a method includes providing an adjustable inflation system capable of providing an electrical stimulus to a set of fibers within an inflatable structure where the set of fibers can adjust a surface of the inflatable structure from a first state to a second state based on the electrical stimulus.

Systems and methods described herein relate to using silver-coated twisted-coil polymer fibers to adjust the shape of inflatable structures, such as to provide an adjustable curved projection screen. In one embodiment, a method includes providing an adjustable inflation system capable of providing an electrical stimulus to a set of fibers within an inflatable structure where the set of fibers can adjust a surface of the inflatable structure from a first state to a second state based on the electrical stimulus.