There are several books on cultural art -- the type of thing where the child (and maybe adult) make a project that is representative of art popular in a given culture. I think that's what you're talking about, right? One that I've seen is Mary Ann Kohl's Global Art: Activities, Projects and Inventions from Around the World (I'm a sucker for her stuff...there are other books out there that do the same thing, BTW, this is just the only one for which I can come up with a title at the moment). A children's librarian might be able to help you. I'm sure there are websites about this, too.
For what it's worth, you can do the same thing with math -- explore math via different cultures, and different cultures via math.
I've never been big on painting rocks myself. I'm pretty sure you'll find directions at www.familyfun.com
I remember seeing an article on it there.
As for the robot, good for her. My dd's big plan is to acquire a magic wand which will enable her to do all the housework. Of the two, Amy's plan sounds like the more likely to work.