| Clue | Source | Date |
|---|---|---|
| *Hollow support for a raised garden | Universal | 04 Apr 2021 |
| Karate chop target, sometimes | Wall Street Journal | 29 Dec 2020 |
| Concrete construction unit | USA Today | 07 Nov 2018 |
| Concrete construction unit | ||
| Building unit | ||
| Concrete wall segment | ||
| Masonry unit |