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 have those magnet balls and over the years (sounds more dramatic than it is) i bought 10 sets which usually sit on my desk in some fancy shape as decoration.
They can get fairly expensive (mass/price) so i opted to buy a single set every so often as i haven’t found a magnet shop that sells individual balls for less.
Sometimes i get so invested i’ll mess with them for hours.