The way Myst Online: Uru Live was so built-upon by its fan community, sometimes it was the game that derived elements from the fan-art, instead of the other way around.
Way back in... holy cow, was it really in 2004? Fans of Uru started contributing to the community by creating maps and diagrams of game locales. Often those were very lovely works of art in themselves. In the in-character spirit of Uru, they formed the Guild of Cartographers and became one of the first unofficial guilds to find a really useful niche to fill.
They wanted a guild seal to represent them, so I made this one in Photoshop. Now that I look at it again, five years later, I think it's a little busy and a little dull, but five years is plenty of time to better one's skills.
The more exciting thing (to me, anyway) happened in 2007 when the DRC decided it was time to encourage real guild structure in the cavern and officially recognized five guilds. The Cartographers were one of them. This meant that they would get access, as each guild did, to a special meeting hall just for their members, which was decorated with carved stonework and the colors and seal of each guild. Cyan invented or had already established seals for the other guilds. (Correct me if I'm wrong.) To acknowledge the work and the themes the Cartographers had already done, Cyan adapted the seal I made into their own version, simplified it (made it better and bolder, I think), and placed it in the game's textures.
My lightly-photoshopped and colored extraction of Cyan's version of the seal, from a screenshot of an Uru texture: [link
This is just another little example of why Uru was so deeply personal an experience for me and for many, many of its players. I'm still grateful I got to be part of all its woefully short runs.