Simply find a tree branch that is thick and diverges at its top into two separate poles. The two poles symbolize the concepts of order and disorder, for sure. Now, tie some form of elastic between the two poles. This represents superstring theory which, according to my understanding, is science talk for "magic!"
Now perform the Wholey Apostolic 5 Star Mega Banishing Ritual to bless your new Ritual weapon, and go forth into the world to spread nonsense and anarchy.
Eris' wand has been found almost everywhere that Erisian thought is present
Here we have a mighty Erisian Sorceror using this tool to hex invaders in his homeland