Make Your Own Gaskets

Tired of paying for gaskets? This method stil costs some money, as he recommends you buy gasket paper. It's a good write-up on how to make a nice gasket that fits as well as it looks.

I have heard of some people using ceral boxes or other cardboards for gaskets. While this might not be a good idea for a head gasket, I think low pressure applications, such as a differential gasket, should be okay. Be warned that cardboard gaskets, even factory built oem cardboard type gaskets, weep a little bit. They don't leak, but the 3rd member always seem to be a little bit wet back there.

http://crustyquinns.com/tech/myogasket.html