| Clue | Source | Date |
|---|---|---|
| Projectile that hasn't been sold in the U.S. since 1988 | ||
| Controversial backyard projectile | Universal | 21 Jul 2020 |
| Banned backyard missile | Newsday | 27 Mar 2020 |
| Projectile banned by the Consumer Product Safety Commission | Wall Street Journal | 20 Feb 2019 |
| Projectile banned by the Consumer Product Safety Commission | ||
| Dangerous backyard projectile | New York Times | 25 Sep 2016 |
| Dangerous backyard projectile |