See-Through Phones (1980s)
These weren’t really toys, they were real home phones that
were see through (and perhaps
a pre-cursor to the clear beverage craze of the 90s). These phones allowed you to
see the inner workings. They
had lights inside that would flash when the phone was ringing. Some models even had keypads that lit up as well. The phones were made from clear plastic and even came in a variety of colors, though the clear was the best for seeing through, of course.