Hi Ginny, I found that Blind mice Mart had the best price when I bought . For my cans, I cut up the large tags and put them on a flat magnet. Some people put one in a plastic bag and pin it to close. I also used mine as a MP3 player... Bob -----Original Message----- From: real-eyes-bounce@xxxxxxxxxxxxx [mailto:real-eyes-bounce@xxxxxxxxxxxxx] On Behalf Of V Nork Sent: Thursday, December 01, 2011 09:52 To: real-eyes@xxxxxxxxxxxxx Subject: [real-eyes] good old pen friend Does anyone have any experience or advice on this venerable way of identifying things? Any cost effectiveness advice? Where to buy? Grateful for any help, Ginny To subscribe or to leave the list, or to set other subscription options, go to www.freelists.org/list/real-eyes To subscribe or to leave the list, or to set other subscription options, go to www.freelists.org/list/real-eyes