Search YouTube for "3D hologram video" on your phone. These videos usually feature four identical images on a black background.
Join the four pieces together using tape or glue at the edges to form a pyramid shape.
On graph paper, draw a trapezoid with these dimensions for a standard phone: Base 6 cm, Top 1 cm, Height 3.5 cm. Hologram
This project uses a transparent plastic pyramid to reflect images from a smartphone, creating the illusion of a 3D image floating in the air.
Turn off the lights for the best effect, and watch the 3D image float. Pro-Tips for Better Visuals: Search YouTube for "3D hologram video" on your phone
Trace the trapezoid stencil onto the transparent plastic four times. Cut out all four pieces.
Thin, rigid clear plastic from old packaging works best. On graph paper, draw a trapezoid with these
Set your phone screen brightness to 100%.