Oh wow using examples in the title screen is such a good idea, I can't believe I didn't think of it! I did this in the version I just uploaded.
I'll poke at making the examples only show up on a first playthrough.
The example sprites are intended as, well, examples, since they use dollmaker output and you can see how they're called in script.rpy. But I guess some people could find the fact that there's also code to run the dollmaker in there confusing/intimidating, and it wouldn't be too hard to make a little example project. I'll see if I can make something that feels useful.
Thanks for the great suggestions!