The potential of colorless structural glass is usually far underestimated. Depending on the incidence of light and, of course, on the structure of the glass, each individual piece has a different effect. Thus, great fascinating works of art can be created entirely from colorless structural glass.
In the example here, I cut a strongly wavy glass into squares and put them together, each rotated by 90°. Depending on the incidence of light, different squares always shine in the sun. With longer viewing, you can even see how the light image slowly changes - a great effect !