Bic has long been known for good quality pens and is by far the best seller with my clients.  Several years ago they went into magnets and adhesive pads and have done a good job with both.  Today there is a special on one color magnets 500 @ .12/ea and on full color at .18/ea.  These are 20 mil thickness.  30 mil slightly higher.  See samples online at www.bicgraphic.com  Call me at 804-515-0300 for your special needs and help with art specifications.  This should be good for the First Quarter.  Matt D  1/22/07