I know in general watermarks are easy for some to make but for others they aren't. My idea is this... an addon that allows for a frame that will pull your guild logo (or if not in a guild a horde/ally logo) It would be nice to incorporate guild logos into a ui look and display them in screenshots and vids easily. This would also allow for a tabard to be changed and it would update instead of having to recreate images and layouts to customize it again. Maybe even have it say the guild name across the bottom.
I am a graphic designer and have the visual ideas just not the coding no how so if anyone decides this idea is worthy of working on and would like graphical help please feel free to message me.