Eye shadows is a nice make-up that accessorize/enhance the eyes when applied to the upper/lower lid of the eyes.
Some colours are preferably used than others ( some people use blue, pink, army green, bronze more than yellow, white, grey\silver).
Don’t throw away your abandoned eye-shadow, you can use it as a chalk in crafting.
Photo: Eye shadow used as a chalk in this stenciled project
Photo: Eye shadow use as chalk to enhance details of this layered medallion stencil design by Plaid® Enterprise
Photo: Eye shadow make-up kit