Do they still sell the following applicance (I don't really know what to call, which might explan why I can't find it):
A heating element that you can stick into a mug of coffee/tea/soup and heats the liquid to a boil. It is ideal for traveling, dorm rooms,offices etc.
I like to find this to take on a trip. Years ago, I recall my college room mate having one, but I used a hot pot--which is too bulky for my trip (via airplane).
Any help as always appreciated. Thanks!