The accessory in question is called Blur. These days, a highly diluted form is used mainly by people who want to start a questionable thread and wish to keep their identity in doubt, but in the 40's it was one of those idiotic nazi (may they all be suffering in an especially nasty type of augmented hell) "secret" weapons. They would spray it on their faces before scampering off to their daily jobs as atrocity guys in the hope it would hide their identities, but it proved to be highly toxic (so far, so good). In keeping with their typical efficiency and concern for public safety, they applied a warning to the aerosol cans;
"Caution, do not spray product directly into your face. Spray it directly into someone else's face. Someone Belgian, perhaps."
Unfortunately, once the blur was out of the bag, so to speak, it could never be un-invented. Politicians have been using a de-toxified derivative for several decades, to make their absurd ideas seem to be mostly harmless, with impressive results.
As for why it could be considered a Bass accessory, that's another story.
Tom