The Batman Heat Change Mug

The Caped Crusader has glided in to save the day from the enemy of fatigue once again. 

He comes in the form of this heat changing mug which features the Batmobile, the iconic bat symbol above Gotham City and his dark and sinister glare. 

Before hot water is added, the mug is black in colour with glimpses of the Batmobile and a colony of bats. Once this mug is heated, a blood red colour appears, revealing the look of contempt he wears in the face of his enemies alongside his calling card in all its glory.