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.
You mean Metal Earth? Though they are not the only ones who make those kinds of models but they are the ones that got me into it (for a few months)
That was the one showing at the top of my searches, but there was another company I was thinking of that I can't recall nor find now.