My kids love to dip their cookies in milk, a practice to which I do not subscribe but nonetheless sanction. However, the choice of cup poses a problem: a cup large enough for whole-biscuit dipping must necessarily be filled with a huge amount of milk, whereas a cup that holds the right amount of milk is usually too narrow for proper dipping.
Enter the Little Dipper, a cup designed specifically for biscuit dipping. The slot-shaped cup holds about 100 mL of milk, the perfect accompaniment for a biscuit or three. The slot is 8.5 cm long, and was designed to accommodate a McVitie's chocolate digestive, which is basically the ISO 9001 of the biscuit world (at least it seemed that way for the year we lived in London). The sides of the cup are flared to allow thumb and forefinger to achieve dipping perfection (just remember to keep your little finger extended), and the milk can be drunk afterwards from one of the narrow ends.
For a bit more information about the Little Dipper, see my blog.