Saxophone is just as unexpected, other -phone musical terms, like vibraphone, idiophone, membranophone, come with a prefix unrelated to people.
Sadism and masochism - perhaps less unexpected, but no less than shrapnel IMO.
Sadism and masochism - perhaps less unexpected, but no less than shrapnel IMO.
Sousaphone is another -phone that's pretty obviously named after a person. Less well known but still pretty obvious are rothphone, heckelphone, sarrusophone, sudrophone.