Other creative toys/products that come to mind would be, say, Play-Doh as a sort of children's intro to…Clay, I suppose? But in this vein without being exclusively directed towards children (albeit I imagine many may be).
Always enjoyed a creative kind of toy to mess around with.
I used to love Erector Sets. And blending them with LEGO and junk parts to make shit that did "something." Now, I just work on diesels, drink whiskey and fish.