When I was a kid, I found a bizarre pen at my grandmother's house. It was a marker with a roller on the tip and it created a dot pattern similar to zip-a-tone when you wrote with it. The ink was a dull purple, like Spider-Man's webbing in a comic book. She called it a "fax highlighter," but I've never been able to find such a thing in office supply stores or on the internet. It sure would be cool to have one for shading and creating a unique look in quick sketches. Help?
posted by clango on Apr 17, 2007 - 17 answers

The best commonly-available highlighter? [more inside]
posted by coolhappysteve on Feb 11, 2007 - 19 answers