An anti-theft display hanger includes a body portion having at a first member including at least one recess for supporting an electronic article surveillance sensor, and a second member designed to overlay the first member. The service staff is equipped with a communication station having a display, and each customer is equipped with a signaling device in communication with the communication station. In some implementations, a mobile device includes a user interface, a main processor, and a co-processor. The planarizing layer and the second gate material layer are non-selectively etched to form a second gate stack that approximates the height of the first gate stack. A faceted geometry allows optimal material usage and in turn increases the crosstie-ballast interlocking and stability with respect to the support surface. Such an oriented multilayer polymeric film has improved flexibility as well as improved gas barrier properties.