These awesome colour-changing magic mugs are ideal for Birthdays, Father's Day or Christmas. Choose from a wide range of designs, then personalise the back with your own special message. Grandpa text can be changed to Poppy, Baba, Pa or whatever you like.

Tell Grandpa how grateful you are to have him in your life with a special one-of-a-kind gift that will bring a smile to his face every day while he enjoys his cup of tea or coffee. When the mug cools it goes back to black. Four lines of text on the back and 18 characters per line. Hand Wash only.

Mug size is 3.7" x 3.1"