Here are some examples http://hubpages.com/hub/foods-to-increase-testosterone http://hubpages.com/hub/GuaranteedWeightLoss Mainly provide good content that people are looking for and link relevant products. Then you just need to drive traffic to the hubpage. I wish luck!!
All you have to do is write unique and good content supported with some pictures for the product you want to sell. Jus't try not to over flood amazon ads.