What you see here are painted flat rocks to look like Matryoshka dolls. It was a lot of fun to paint these and I'm really excited on how they turned out.
Painting rocks requires very simple materials. Basically all you need is a rock and some paint and, there you go!, a nice little happy rock to make whatever space it's put in, a cheery place. :)
P.S. I wonder if I could put these in the garden...