Death Note (Object) - Giant Bomb

A book which causes the death of anyone whose name is written in it. The central object of the Death Note anime belonged to the Shinigami Ryuuk, and was dropped in Japan and found by Yagami Light.

King Bob-omb - Super Mario Wiki, the Mario encyclopedia

Daughter

Demon Core: The Strange Death of Louis Slotin - The New Yorker

Gamera Wikizilla, the kaiju encyclopedia

Weather maps reveal huge 450-mile snow bomb to bring -8C freeze to UK in less than two weeks - Birmingham Live

Zack Snyder's Justice League: Easter Egg Snyder Cut Guide

Death Object : Exploding the Nuclear Weapons Hoax book by Akio Nakatani: 9781545516836

Explainer: When are attacks on civilian infrastructure war crimes?

Artifact of Death - TV Tropes