Battery Mug - Morph Colour Changing Heat Sensitive Coffee Tea Cup
Do your batteries need recharging? Then perhaps it's time to put your feet up with a hot cuppa in one of these great colour changing battery mugs! This seemingly plain mug lights up when hot water is added to reveal the image of a charged battery. Porcelain Mug in natural battery electricity grid Microwave safe Heat sensitive New design, novelty, funny Attractive gift box