A portrait orientation #PenPlot of a 3 x 4 grid of 5.25" floppy disks shaded in a CMY rainbow scheme with the density of the shading darker at the top and lightening towards the bottom.
https://files.mastodon.social/media_attachments/files/110/429/894/330/111/143/original/b8d5dcfa3db407a0.jpeg