The salesman picked a small white pebble out of his collar.
He picked up a small pebble and threw it with some force through the window.
Consider, for example, a small pebble sitting on the bed of a river.
He was sitting by the fire, staring at a small black pebble in his palm.
Then the search starts for small pebbles, stones, anything he can find.
The operculum of the case is covered with small pebbles.
He took a small pebble from the ground, tossed it upward and through one of the windows.
Included in this combination would be small pebbles and similar debris.
All of this in a package no larger than a small pebble.
It is 300m long and covered with small white pebbles.