I have read posts where people have taken "hot pots" with them and used them to heat up noodles, soup, etc. in their rooms. I know what a CROCK pot is...and also what I call a "hot plate", which is like a stove eye in which you plug in and set pans on. Is that what a "hot pot" is? I have gotten the impression that it is something different; a one-piece contraption? Where can I get one for my upcoming WDW trip and how much are they?