Well, our robot looked the most ghetto at the 2004 Great Lakes Regional. The numbers were electrical tape, and the thin Lexan we used was already ripping and coming off. Our robot was originally four wheel drive and 80 percent finished when it was shipped off, so everything was hastily put together at the competition and we ended up with a two wheel drive robot, as it couldn't turn well. The front two wheels were replaced by casters. To add to all of this, we had to remove around 5-10 lbs (I think). Our drills were almost burned out after all the swiss-cheeseing that had to be done. By the end of our first day, the robot still wasn't done. This is mostly due to the fact that our robot was built in about two weeks, with our back door system designed and built in the last week
I don't have many ghettofab details from competitions though, as I was mostly in the pits bugging...I mean...scouting...other teams.