Materials:

Dark-colored plastic cup
Wax/butter paper
Scissors
Rubber band
Pushpin
a shuttle cork cardboard box (both sides open)
To Do:

Use the pushpin to punch a hole in the center of the cup’s bottom. Cut out a piece of wax paper slightly larger than the cup’s mouth. Stretch this paper across the mouth of the cup. Use a rubber band to secure the paper.
now insert the cup inside the shuttle cork box with the bottom of the cup outside and the side with wax/butter paper inside (see that no light enters from the cup side and there is complete darkness if you see through the other side)
now point the pinhole towards the sun you will see a small dot forming on the butter paper that is the disk of the sun as the eclipse proceeds the sun starts forming a crescent phase

PS NEVER LOOK DIRECTLY TO THE SUN IT DOES NOT MAKE A DIFFERENCE IF ECLIPSE IS ON OR NOT !!!