Depending on your use case, if you want something stiffer you could brush each sheet with slow curing epoxy resin, then layer and press it to create some DIY micarta (yes, micarta technically uses phenolic resin, but epoxy should work fine for most uses).

More to the point, there are some perfectly suitable rules that every other federal judge is bound to, we don’t need a new set of rules at all.

From the opening page

The Court has long had the equivalent of common law ethics rules, that is, a body of rules derived from a variety of sources, including statutory provisions, the code that applies to other members of the federal judiciary, ethics advisory opinions issued by the Judicial Conference Committee on Codes of Conduct, and historic practice. The absence of a Code, however, has led in recent years to the misunderstanding that the Justices of this Court, unlike all other jurists in this country, regard themselves as unrestricted by any ethics rules. To dispel this misunderstanding, we are issuing this Code, which largely represents a codification of principles that we have long regarded as governing our conduct.

So…

1. Why, if you think the code that applies to all other federal judges is good, did you not simply adopt it?
2. So the problem is that people think the justices consider them not bound by ethics rules because they don’t have a formal code, not the behaviors of certain justices that have come to light in recent years, got it.