A ham sandwich is a common type of sandwich.
Scooby-Doo, Where Are You!
A panicked Shaggy Rogers idly asked for a calm-inducing ham sandwich after the gang separated while finding Daphne Blake, and a sandwich materialized out of mid-air. Shaggy then asked for mustard to go with it and a mustard pot floated down. He put the ham sandwich on a table beside a knight's armor and wondered on his imagination. The knight's axe then swung down and cut the sandwich in half. Shaggy ran screaming, but went back for the sandwich.