Something to have printed on a laminated card, for your wallet, or however you might want to carry it. From human rights lawyer Francis Boyle:
By authority of the Nuremberg Code on Medical Experimentation, I do hereby exercise my right to refuse to submit to or to administer the Covid-19 vaccine. The United States Government has prosecuted, convicted and executed Medical Doctors who have violated the Nuremberg Code on Medical Experimentation. Aiders and abettors of Nuremberg Crimes are equally guilty and have also been prosecuted, convicted, and executed.