QR codes are everywhere now, so why not have your own? The QR Code Necklace Pendant from Blend Creations is a stainless steel tab laser-etched with a QR code of your choice. The pendant is 7/8″ X 7/8″ X 5/8″, and you can choose to have it engraved with one of three ready-made messages (I love you, I<3 geeks, or Barcodes FTW) or with your own URL or message. You could even have it engraved with a link to your ID and medical information. The pendant is $59. You can add an aircraft cable keyring for $2.00, or you can add a 16″, 18″, or 20″ rubber, leather, steel, or sterling chain for $10-$20, depending on material and length selected.