The Toyota Mirai hydrogen fuel cell electric vehicle has hardly been an international sales success, thanks to poor hydrogen infrastructure, expense, and polarizing design, but it proved successful to Ukrainian forces which scavenged parts from the hydrogen car to create the world’s smallest hydrogen bomb.
Personally, I think that “hydrogen bomb” is a worse name for the fission/fusion bomb than for this one. I mean, it is what it is because the name has meant the fission/fusion bomb since it first became a thing, but it was either a bad naming or the name was selected because it was deliberately misleading (cold war and all).