Inspired by the favorite toys thread some time ago, I wondered what some of the LEGO fans actually built with their sets. Some of my best creations were as follows:
Gear Powered Windmill. This stood about 3ft high with 4 large blades on top of a tower. The blades were powered by a row the those yellow gears on the turntables going across the tower at the top and down the tower to the base. As you turned the crank the blades would slowly spin, you would have to be careful and build up the momentum slowly or the blades would fly apart.
Rocket. About 4ft high with 4 swept back fins at the bottom and a smaller set of 4 at the top. It was extremely heavy and fragile and you really could not play with it or move it around too much.
Moonbase. My brother and I had many large sets about 4000 pieces all together and wanted to make something to use every piece in the box, so we decided to make a moon base like ALPHA from Space 1999. After about a week we did succeed in using our basement floor and every piece. The base had many buildings connected with corridors, launch ramps with little fighters, landing pads with various spacecraft my friends made, laser gun batteries, the reactor building and we used all the wheels for various moon buggies that serviced the base. After about a month my dad was fed up with all the space it took up and we had an epic battle that destroyed the installation.
Submarines: We had a pool so my friends and I built submarines to take in the water, they did float and we would dive bomb them jumping in the water next to the assembled fleets. We did tend to loose a lot of pieces and to this day I still find an occasional block in the yard.
I would be interested in the creations of other LEGO builders.