You can try USendHome, i haven't tried their service yet but meaning to. you can get great deal from purse.io if you want to buy something from amazon.
I checked them , since It got mentioned in a few news sites about bitcoin and they actually partnered with purse.io I assume Its a legit service but the problem is that I don't only shop with Amazon and also they have no DHL which is basically my favorite method since of the time my packages get lost If I don't use it.