The Underfull is a conceptual tablecloth which shows hidden designs patterns whenever a liquid is spilled on it.
Norwegian designer Kristine Bjaadal has designed a prototype of a tablecloth which forms patterns of butterflies whenever a liquid is spilled on it. The Underfull looks like an innocuous tablecloth, but has hidden designs which are revealed when certain hard to wash out stains like red wine are spilled onto it. Instead of leaving ugly traces, it creates a butterfly pattern which grows as the tablecloth is used and spilled on over time.
Each new subtle layer of design formed will be reminiscent of the dinners that this tablecloth held and Kristine hopes that people using it will form a sentimental attachment towards it.
Here’s a video of how the Underfull will work: