felt-tip pen
felt-tipped pen
felt-tip

And keep a collection of felt-tipped pens in your pocket.

With a felt-tipped pen, from the looks of it.

And with the felt-tipped pen, Misty does one, then the next.

He has his own felt-tipped pens some of the time.

On the counter lay a writing-pad and a felt-tipped pen.

She found that Margaret carried everywhere with her a writing pad and a felt-tipped pen.

The felt-tipped pen made a black mark on the underside of her chin.

As before, the girl used the felt-tipped pen to slash angrily at the notebook.

The entries were written in felt-tipped pens of all colors.

I took blue and red felt-tipped pens and went across to the diagram on the wall.