In terms of independent works whose creators requested people not sell mass produced prints/etc. of them. I thought this would be a helpful list for people. Feel free to add to it or message me with anything I might have overlooked so I can add it myself (or with corrections). c:
- Undertale
- Welcome to Night Vale
- RWBY (and anything else Roosterteeth related)
- Homestuck
- Ava’s Demon