Lol. They are little tassels, like you’d see on a sort of “sexy genie” type costume or a strippers nipples (although these are shorter than common in those applications) but they are arranged so that the bra and breasts form the shape and general likeness of a common depiction of the corona virus itself. Not arguing you should like them, the second part of your comment is an opinion and I respect it. I am replying to the first part in which you stated that you didn’t know what was on the bra.
From China