Want to attach images to QR Codes? There are a million used for this in the classroom! It suggests Photobucket to host images, but I like Dropbox even better because it will host more than just images.
This QR Code Addin for PowerPoint helps you to embed QR Code in your PowerPoint slides. You can use this QR Code Addin to generate a QR Code for your contact slide or to be used in many other creative ways.