People suggest DIY. You can try for sure but I can almost guarantee that you will not succeed. It is incredibly difficult to build a cable that sounds like a 1k cable from reputable brand like Shunyata. Cables that are much better cost way over 5k and you will notice the difference immediately. Read this and pay special attention to the last post.
http://forum.audiogon.com/discussions/extra-extra-millercarbon-proven-wrong-read-all-about-it-extra-e?highlight=millercarbon&page=6
You can spend arm and leg on the cable as well but it is not likely going to be better than the one made professionally. Check here
http://forum.audiogon.com/discussions/nova-power-cord-model-m101-silver-review#2180479
http://forum.audiogon.com/discussions/extra-extra-millercarbon-proven-wrong-read-all-about-it-extra-e?highlight=millercarbon&page=6
You can spend arm and leg on the cable as well but it is not likely going to be better than the one made professionally. Check here
http://forum.audiogon.com/discussions/nova-power-cord-model-m101-silver-review#2180479