Whirligig

Slats of pale clear stuff hide bright shapes that shift with every step.

This is an acrylic whirligig. Acrylic is a clear, lightweight plastic first developed in the early twentieth century, and it can be cut, heated and shaped into bright, colored forms. Cylindrical display made of many thin vertical white fins, with blue, red and yellow shapes printed on the faces. A clear peg rises from the top, and the base is a plain translucent drum. It is 12.5 inches high and 8 in diameter.

Tricks the eye in primary colors.