Pin Art

Pin Art or Pinscreen is an executive toy patented in 1987 by Ward Fleming. It consists of a boxed surface made of a crowded array of pins that are free to slide in and out independently in a screen to create a three-dimensional relief. Other similar product names are "PinPressions" and "Pinhead". The original Pinscreen toys were made of metal pins, which were heavier and tended to bend easily; newer Pinscreen toys are generally made of plastic pins. Pinscreens have also been used for animation production; a larger device working on a similar principle was invented by Claire Parker in 1935. 
A giant 4' × 8' pinscreen is at the Swiss Science Center Technorama in Winterthur, Switzerland. This screen is like a large 3D drawing pad that can work with different sizes of paintbrushes for calligraphy.