Product display systems are provided. The product display system may include a product display assembly. The product display system may also include a retail product positioned in proximity to the product display assembly. The product display system may further include a power source configured to output electrical current. At least one of the product display assembly and the retail product may include a shape-memory alloy. The shape-memory alloy may be configured to change from a first shape to a second shape in response to heat produced from electrical current provided by the power source.