Greenpeace just wants people to use
glass sex toys, or a

maybe.
But, if the smell of some of these realistic or soft toys when they come right out of the box is any indication, Greenpeace may have a point. Although, there is still a large group of people sharing sex toys, and that should be of greater concern to most. Either way, I guess use glass or a condom.
I tried finding something about this from sextoy manufacturers, but couldn't find any that talked about toxicity or the like.