Though I can't say about your particular contact, what is most often asked for and used is sometimes called a "hot pot". I have seen them made by Rival and I can't remember the other brand this minute (I'm getting old). If you put hot pot in the search, you may find the thread that had discussions on them a while back. The ones that I have seen are plastic, about a quart capacity, and have inside them on the bottom a "plate" that looks like the base of a coffee maker. They do make another type that is a little more expensive that doesn't have the exposed plate in the bottom that can also be used for heating foods other than water like soups.
You might try Googling "hot pot" and see what you find.