yeah, i remember as child doing many revell aircraft, ships mounted, it was much fun. We made city with 'clothes boxes' which we named 'Micon' which I was the president and my brother vice-president or something like that. My sister was 1st lady...
but we built vulcans, tunnels, port for our school science fairs. I built a pensil bridge also. We had used to have lot of chemicals toys as well, which until today i have a remained microscope, good to see nothing, but... After introduction of China in toys, Barbie and those bullshit uninteligent toys, i think kids lose a lot of those top scientific ones.
Computer, nintendo, gameboys made dissapearing them also, unfortunatly. But i remember pushing my big trucks on the roads. You don't see kids doing that anymore. It was a more sane infancy...