| Clue | Source | Date |
|---|---|---|
| Transport for children (4-4,5) | The Guardian Quick | 21 Feb 2025 |
| Thomas the Tank Engine, to a toddler | USA Today | 12 Feb 2025 |
| Engine for the very young | The Guardian Quick | 22 May 2023 |
| Something a toddler might chug? | New York Times | 30 May 2020 |
| Locomotive, to a toddler [OWL] | ||
| Children's toy on tracks |