I wanted to put one of these images on my wall, but they were niche enough that I couldn't find anybody selling them. I printed one myself using Zazzle, but then I started thinking that it would be cool to create a place where anybody could share cool niche images they found and have them automatically be available as a poster. I built my site - https://postercoop.com - over a couple of months at the beginning of last year.
Per probably the second-most common fate of hacker projects (after not getting finished at all), I lost interest before doing much marketing or figuring out any sort of product/market fit, but it definitely an empowering experience to at least see a project through to going live on the internet and learn for myself that "build it and they will come" is for the most part a wishful fantasy :D