The description of the dust of disappearance magic item states:
There is enough of it for one use. When you use an action to throw the dust into the air, you and each creature and object within 10 feet of you become invisible for 2d4 minutes.
One of my players decided to do a line of dust of disappearance to avoid having it affect everyone within a 10-foot radius.
I thought it would be funnier to just have their nose go invisible, but as they have more powder, I want to know what a more official use would be.
Can you selectively dust just an individual or yourself? Could you ingest it or slip it into a drink for the invisibility effect?