Russian nesting dolls, traditionally called Matryoshka nesting dolls. I used to want a set of these for ever so long. Finally I bought one at the CNE several years ago. Now I still have it, packed away somewhere. Maybe it will turn up once I move and have a place of my own to unpack things to. That would be nice. Not that I have all the furniture/ storage to put everything. But, it’s the idea of it all.