An example of an object you could use.
A handy-dandy Wikihow artigo on how to make a horcrux, for all you aspiring Dark witches and wizards out there!
1. Become an extremely powerful witch or wizard. This will take years of study and sacrifice which lie beyond the scope of a WikiHow article. As a general guide you should not attempt to create a horcrux until you can cast non-verbal killing curses.
2. Locate an object of extreme significance to you. An emotional attachment to the object will aid the process and make it easier on your body and soul.
3. Bathe in the Water of Sorrows and eat 1 cup of paste made from...