To make a simple Movie Pictures displayer.
Movies, TV and other motion pictures are an optical illusion produced by a series of still images projected sequentially and rapidly across the screen. The principle can be easily demonstrated with this simple Movie Pictures displayer. Fold in half a letter sized rectangular piece of paper. On the upper-half draw a cartoon face as shown and on the lower-half draw a slightly changed face.
Roll the upper-half into a tube. Hold your left finger on the upper left corner on a table, and use your right hand to rapidly roll & unroll the sheet using the pencil above the upper sheet, as shown. Move the pencil rapidly up and down, causing the upper sheet to unroll and roll up continuously. A Movie Pictures effect will be seen.