How did Evolution produce Symmetry?

If it's part of natural selection, then why is it that no one has found any fossils that have more legs on one side or more eye sockets on one side, or something like that? Wouldn't there at least be fossils? Isn't it more likely that we'd find at least some fossils that were not very symmetrical than it is that all the symmetrical fossils that have been found were found.An example of this is sticking a 'U' shaped magnet in a container of paper clips, nails, and safety pins, is it more likely that you will get the same number of each object on each side or that there will be a different number of each on each side.Even though it IS possible that the first time you take the magnet out the sides will be symmetrical, how likely is it that every single step of evolution created a perfectly symmetrical creature the FIRST time? In the example of the magnet, how many times out of ten would you get the same number of each object on each side? Not many, so how many of the steps of evolution, where there are more possible outcomes, would end up perfectly symmetrical? Most likely not many.In other words,
WHAT HAPPENED TO THE FOSSILS THAT AREN'T SYMMETRICAL?

One example, but how many others are there? Like I said, evolution may say that natural selection decides on which animals live and die, but, like in the example with the magnet, wouldn't there be more non-symmetrical results?

meaning that the animals that aren't symmetrical would die, also meaning that the dead animals would leave behind skeletons, most of which would become fossils,

well, the creature that is non-symmetrical, (the individual) WOULD be part of a worldwide population if they hadn't died bc of "natural selection,"as i said w/ the magnets, there would be more non-symmetrical creatures that evolved than symmetrical, making the non-symmetrical more common,I'm sure that just as many of the non-symmetrical would have been buried quickly, probably even more, since they wouldn't be able to move as quickly.

so... wut ur sayin is
1. that bc an animal has an extra leg or arm or somethin on one side, it won't become a fossil?and2. if that is the way it works, then how do you explain cancer? A mutation in the cells, wouldn't cancer be non-existant? After all, it doesn't increase the chance of survival or protect the creature in any way, so why do cancer cells still form?Anyway, I g2g for now, I have a test tomorrow and more algebra homework... sigh... I'll respond 2 ne comments in the future