sandpit

noun3

1. •
   A place or pit from which sand is excavated.
2. •
   A children’s play area consisting of a large container filled with sand.
3. •
   A small-scale illustrative model of the theater of war in the Middle East.

   • Originally designed to illustrate Kuwait and the oil pipelines, the 'sandpit', based on maps and photographs to a scale of 1:1,000,000, was extended to include other countries. — 1991