Assembly with object in housing

A toy assembly, comprising:

• a housing, wherein the housing includes a first housing member and a second housing member, wherein the first housing member is light transmissive to an exterior of the housing, and a light transfer member having a light inlet and a light outlet, wherein the light outlet is positioned to direct light into the first housing member so as to render the light visible from the exterior of the housing;
• an inner object inside the housing, wherein the inner object is removable from the housing;
• at least one sensor that detects interaction by a user with the housing;
• at least one light emitting element positioned on the inner object and which is not visible from the exterior of the housing, wherein the at least one light emitting element is positioned to direct light at the light inlet of the light transfer member so as to transmit the light through the light transfer member into the first housing member and through the first housing member so as to be visible from the exterior of the housing;
• and
• a control system that includes a processor and a memory connected to the processor, wherein the processor is programmed to execute instructions stored in the memory, to determine whether a selected condition has been met based on signals from the at least one sensor, and to operate the at least one light emitting element if the condition is met.