I had some biggies....bb gun, pedal tractor, Lincoln logs....but my all time favorite was my erector set. I had one then got a couple of more and spent hours and hours building things. The first thing I built came out of their book but after that everything came out of my mind.

I even built a front wheel drive truck with steerable wheels... and a cable crawling machine

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.