>>45331219A few of these make sense. Both Cofagrigus and Runerigus are themed around funeral practices: sarcophaguses and Viking burial mounds. You could argue that the gothic coffin and ship wreck designs fit the theme (with sailors dying or even regular burials at sea) and somewhat make a case for the fire vessel thing, but like you said, most of them are ridiculous.
There's a few designs that I like, but don't really work thematically.