Green Flag. Rotating squares that form two different pictures.
This is a Pen project - the squares are not costumes. No trigonometry (sin,cos,tan etc) was used. * inspired to make this project after seeing the video "How can a jigsaw have two distinct solutions?" https://www.youtube.com/watch?v=b5nElEbbnfU Rick Astley for the original song "Never Gonna Give You Up".