Lendorff Kaywa, a collaboration between London's knitware designer Office Lendorff and a mobile phone service company Kaywa, is offering a Space Invader QR-code scarf.
The scarf has a secret message encoded in a 2 dimensional barcode that can be decoded with a cell phone with a QR-code scanner.
http://lendorff.kaywa.com/ [Flash]
Took it about 9 days to get to Seattle from Austria after they shipped it.
No, I have no idea what that has to do with Space Invaders either!