Sandpit

That child dug a tunnel in the sandpit.

Tom and Mary played in the sandpit together and made sand castles.

The sandpit has a slide, a swing, a see-saw, and nothing else.

The boys are still playing in the sandpit.

Looking for treasure in the sandpit, the children did in fact find something: a one-Euro coin.

The children are playing in the sandpit.

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.

[…] the commentaries on the battle given by Peter Snow with the aid of a model of the theatre of war, known as the 'Sandpit'.

[…] a conflict that did not fit so easily into the television studios, with their super-patriotic anchormen, their verbose ex-generals, their model tanks and their bloodless sandpits.