How do you make homemade spy gear?
It’s a super simple gadget. You’ll need 2 plastic cups, scissors, a piece of string ( 30 meters long ) and an awl or a nail. First: make a little hole in the bottom of the cap with the awl or the nail. Second: Push the end of the string into the hole and tie it. Do the same with the other cup. When the 2 cups are connected with the string, stretch the 2 sides of the string and talk.