I do a lot of postprocessing of FDM 3D prints using resin, and therefore I use a fairly bright UV lamp. It took a fair bit of explaining to my wife why looking at it was dangerous, so I figured I'd just ridiculously overengineer a sign. While this is the correct ISO warning symbol for UV radiation, I am NOT representing that this sign meets any kind of commercial or industrial standard for design, content, or color - but it looks cool and gets the info across.

I got my best results printing at least the first layer in silent mode, probably due to the acceleration slowing down. The file is set up so you could hypothetically turn off “flush to infill”, increase it to 100% infill, and print the sign body in transparent PETG for a cool “floating” effect.