I was just thinking about this. There are plenty of people offering adwords vouchers on here for as low as $5 for a $100 coupon. What about making multiple accounts and linking them to your Amazon site?
Google will catch on if you have multiple ads linking to the same website. Especially at the same time.
Would this work if you made several landing sites that were all very similar? Could they all point to the same affiliate link or would you need a separate website for landing page?