The Hobbit Shop people tell us of a neat new product they have up for pre-order: a One Ring heat mug.

As they describe, simply pour your favourite hot beverage and then watch as the heat makes hot stuff happen that illuminates the One Ring’s iconic tengwar inscription. It’s pretty neat — I have one of these that declares that I don’t like morning people.

Anyway, check the animated gif below and if it’s your cup of tea visit the Hobbit Shop site to pre-order yours!