The time I tried to build a huuuuuge castle and ran out of wall parts on the basement.
The time me and my bro built a lego catapult to fling hapless minifigs across the room.
The time me and my bro built pull-back motor lego cars to mow down hapless minifigs across the room
The time I built a pull-back motor car that would actually explode all its armor off when it ran into something
The time I built a pull-back motor tank
the time I rigged up some stuffty stop-motion animation videos with lego vehicles
the time I made some not-stuffty lego dragsters
the time I made a chessboard that I later turned into a bar scene for various characters.
[im g]http://www.top40db.net/Other/ToddWebb/lego/WTC/03%20Explosion%20and%20smoke.jpg[/img]
not actual build
but I built something similar to this when I was younger
chrissake nal