Turn a 2D barcode into a knitted scarf! Originally posted to CRAFT.
This is a fun way to get information from a garment into an electronic device, such as a cell phone equipped with a barcode-scanning camera. Anyone who takes a picture of my scarf can decode the message. I used Photoshop to modify the QR code I got from Kaywa (whose barcode scarf inspired me to make my own!) into a usable knitting pattern, but you could easily use graph paper instead. I programmed the pattern into my computerized knitting machine, a Brother KH 930. If you know how to do stranded knitting, you can knit this without a machine – just use really small needles!