Constructed from PVC piping, wood, fabric airfoils, and zip ties, Jansen's sculptures are constantly being improved and are designed to function in the sandy beach environment in which Jansen releases them. The sculptures are also able to store air pressure in order to propel themselves in the absence of wind. Jansen's more sophisticated creations are able to detect when they have entered water and are able to move away from it. One model is capable of anchoring itself to the earth if an approaching storm is sensed.