I somehow thought of an idea where a group of childhood friends invent a time machine so that they can travel through time and by the time they got sent to the time when they are teenagers, when they look into not only their reflections but also the mirror, camera, water and even in reflective areas, they show their younger selves like it happened on It Chapter Two and Hot Tub Time Machine.
Right now, I decided to use up my own ideas with younger and older time-shifting actors and actresses. Examples are:
Finn Wolfhard and Ezra Miller
Jessica Belkin and Kristen Bell
Mohana Krishnan and Mindy Kaling
Skai Jackson (or Marsai Martin) and Tiffany Haddish
Any other actors and actresses that look like young ones?