This novelty mug is inspired by the iconic image of the eye test cards associated with opticians.
Instead of random lettering, the eye chart on this mug consists of the name you submit repeated over and over again. For example, if you chose MARK as the name, the arrangement might be something like this:
K M A
R K M A
To the untrained eye, the text appears like random lettering, but if you look closely you can make out the name. This is a great idea for a birthday present for anyone of any age, but it's particularly suited to those who wear glasses or contact lenses; as they would appreciate the reference to opticians.