This idea is a personalised movie interface embedded in a cup.
The base of the cup is made so that when the liquid has been drained to a certain degree (perhaps by using a moulded-in straw), the remaining pools in the base look like someone’s face.
Clever moulding of the base, before attaching it to a standard cylindrical wall element, could even result in the appearance of a sequence of different faces, or changes in expression of the original one, as it is drained. (This requires that the depressions in one mould overlap in area those of the next). Since the mould depth varies smoothly, this could be used to arrange a grey-level rendering of the face in question, via the varying darkness of the drink.
This would in effect provide the cup with a kind of internal film show interface mechanism without any electronics. Other subjects are possible, but faces lend themselves to easy recognition and also morphing from face to face.
A light shining upwards from underneath a transparent base could even be used to project the movie onto the ceiling.
