If someone made these, I would think it a good idea to carry several copies, one with your real name when absolutely needed and one with a random name. Provide the random one when at all possible and if something pops up problematic, act completely surprised and pretend they must have mixed it up with someone else's last time you provided it. Of course, I will not be making these because I'm planning to follow proper government protocol and receive the vaccine at my earliest possible convenience. ;-)