Use Tide Detergent to Fake Blacklight vaxx verification. Or phosphorescent markers.

In the military my platoon had to use detergent with no phosphorescence because there was a chance our clothing could give us away at night.

After the military we’d paint our dorm room with Tide detergent for a psychedelic effect during black light parties.

You can do the same if it comes down to black light check points. Certainly the idiots at the checkpoint won’t know the difference. Anyway might be a solution in a pinch.

Use a phosphorescent marker or some tide and a modeling paint brush to outline your major arteries. Don’t forget to draw a circle on your shoulder.