https://en.wikipedia.org/wiki/Pet_Rock
Said to be an actual thing (rather than a gag collectible): https://www.theguardian.com/world/2026/oct/26/zero-energy-co...
alt Hacker News
Said to be an actual thing (rather than a gag collectible): https://www.theguardian.com/world/2026/oct/26/zero-energy-co...