Usar "jackstones" en una oración

1. Bentley produced some jackstones

2. He tossed the cloves that had traveled from some dark continent where once they had spilled on milk marble, jackstones for children with licorice hands

3. They would come like a scatter of jackstones on the marble flats beside the canals, the candy-cheeked boys with blue-agate eyes, panting onion-tainted commands to each other