These things are getting to be really cheap. These are nicer plastic tags below, but sheets of NFC tags are like 50 cents each. I am also looking at these things to attach to equipment for easy checkout. I would also love to attach them so that people could tap on a tag and get the manual or even a link to a how-to video. These things just seem so useful. As I said earlier, they also come in sheets of sticker tags that are cheaper and thinner.