Custom Thermal Mugs

thermal
relating to or associated with heat; "thermal movements of molecules"; "thermal capacity"; "thermic energy"; "the caloric effect of sunlight"
A thermal garment, esp. underwear
of or relating to a hot spring; "thermal water"
rising current of warm air
An upward current of warm air, used by gliders, balloons, and birds to gain height

custom
A thing that one does habitually
Established practice or usage having the force of law or right
accepted or habitual practice
A traditional and widely accepted way of behaving or doing something that is specific to a particular society, place, or time
a specific practice of long standing
custom-made: made according to the specifications of an individual

mugs
A person's face
(mug) rob at gunpoint or with the threat of violence; "I was mugged in the streets of New York last night"
(mug) chump: a person who is gullible and easy to take advantage of
A large cup, typically cylindrical and with a handle and used without a saucer
The contents of such a cup
(mug) the quantity that can be held in a mug