I'm sure there are a ton of QR generation websites out there, however here is one more:http://qrbtc.co
Enter a bitcoin address and get out a QR payment code for that hash with a "bitcoin accepted here" logo and a link to weusecoins.com
More of a physical location style Bitcoin QR code. At some point I may offer the image printed on stickers for businesses, or maybe stickers with QR + RFID tags, etc.
The images will never mention the generating site. Please don't link directly to the image however if it is used online.