How cooked would the world be?
Lets say you stumble across a sketchbook that could make whatever you put in there to life and you wanted to put something in there but since there was like, practically zero limitations, you had nothing to work with. So, you forgot about it. Kept it with your old sketchbooks.
Then after you (somehow) finished your current sketchbook, you stumbled across the magical sketchbook and thought it looked aesthetically pleasing. You forgot about its capabilities and drew on it as normal. Whatever you made will appear somewhere random in he world.
The things you put in there can be:
An OC
Fanart
Short story
A Background
And if you make the same thing over and over again, it doesn't make multiple of that thing. It just works as a continuation of the original.
Based on this and a look on your current sketchbook, how cooked are we?