(1) Mark out brick lines with a felt tip pen.

(2) The band made badges using felt tip pens on ruled notepaper.

(3) Is it a 50 watt bulb that a child's been scribbling on with a black felt tip pen?

(4) Get the notes typewritten using a new ribbon, or copy them out in black felt tip pen in large capital letters.

(5) The selected area of a faced sample or hand specimen must be marked with water insoluble felt tip pen before cutting.