Mr Grumpy - Heat Revealing Mug
Original Price £9.99
Add hot water, tea or coffee and Mr. Grumpy changes to Mr. Happy in less than 60 seconds! Probably about the same length of time that the desired cuppa takes to brighten your mood.
Heat reveal system changes in 60 seconds of hot liquid being added.
Not microwave safe and not dishwasher safe.
Rating 4.8 out of 5 STARS