Personally I would avoid telling them any job where they could ask your advice or may be pertinent to themselves or generally us girls. So that would rule out things like make-up artist, beautician etc.
Depending on how glam you are, you could say you do shift work in a warehouse as a supervisor/manager or at a level where one can afford the services of a child minder. I know a lot of ordinary Polish women do warehouse work (10 to 12 hour shifts), and the child minder is unlikely to ask you anything about a job like this.