Tips and Tricks, Non-Riso Pens

This flickr find nearly got me misty-eyed.  Sometimes I can't believe how helpful the internet community is.  Candice Kimchee posted this fantastic test to flickr.  The image shows which non-Riso drug store pens work with Print Gocco.   I cherish my screens and bulbs too much to attempt this test, and now I don't have to!  Cheers to you, Candice Kimchee, my cyber-friend.