QR Voice provides an interesting angle on the regular QR codes that have been doing the rounds recently. QR voice encodes a given text message into QR code that once scanned by a QR scanner smartphone application reproduces the message with a synthesized voice.
So basically you type the text in (up to 100 characters) and QR voice gives you the link.
For example, scan this with a QR reader on your mobile phone such as QuickMark
You could use this to make scavenger hunts, or give additional information on a worksheet or wall display. You can also choose from the language settings, so MFL teachers could give instructions for a scavenger hunt in French or Spanish perhaps?
Is maybe a little gimmicky, but as something extra to try now and then you might find some interesting uses for it.
Check it out at http://qrvoice.net