A system and method of creating customized characters and selectively displaying them in an electronic display, such as an augmented reality or virtual reality display is provided. A digital character may be provided by a character provider for customization by others using the system. Such customizations may be instantiated in user devices that provide electronic displays. Instantiation of the custom digital character may be conditioned on one or more trigger conditions, which may be specified by the character customizer. For example, a digital character customized using the system may be conditioned on triggering events in the real-world or in a virtual world. When a relevant triggering condition is satisfied at a user device, the custom character (i.e., information for instantiating the custom character) may be transmitted to that user device. In this manner, the system may push custom characters to user devices that satisfy the triggering condition.