Are there any non-christian judges in the USA?
If so, just have them put some texts from their belief systems in their courthouses.

If a few verses from the Koean, some lines from Hindu scripture, a paragraph or two from Confucius, and a copy of Desiderata were displayed in different courthouses, what would be the reaction?
If they can stay, then let the commandments stay. But if they have to go, they ALL have to go.

Desiderata