Sadly, Amazon don't let me create discount vouchers, but thankfully Smashwords do! You can grab a copy in a range of ebook formats there (including Kindle)!
Just visit Smashwords to see the book HERE and apply the discount code MP69R at checkout. Offer ends on 20 October 2012.
And of course you can check my range of books on Amazon by clicking the book covers down the left hand side of this site, or going HERE