I saw these at a craft fair once and immediately wanted one. Not only do they fall in my beloved Vintage category, but my mother was a sectary back in the day and there is so much history behind one of theses pieces.
I own a bracelet from http://www.typekey.com.au/, an Australian provider and earrings and a necklace pendant from TAB Typewriter Key in the US.
The main reason I decided to go to TAB for my remaining pieces is the cost was so much lower, obviously because typewriters are easier to source in the US. Either way they are beautiful pieces, that are great conversation starters.