They do. And some of the product pages on Amazon for these have product images that actually show uncensored nudity (like exposed female nipples). Most pages for these show censor bars across the nipples, but not all of them (possibly in violation of Amazon's policy against indecent content being used in product images).

To give you an example, here's a link to the product page for a Kafuu Chino body pillow being sold on Amazon. While I'm not going to show the image here on (or even link to the image here), the image on the page you are about to visit (if you click the link) is definitely a NSFW image. So don't go if you are under 18, and don't go if this kind of image offends you or if anybody else is in the room with you who might see it and be offended.