Usually a crank. Some caskets use "real" keys and some both.
a spoo-key
one that opens doors
The cost to buy a golden casket varies depending on what kind of golden casket and what preference. It could be up to 10,000 dollars and higher depending on the kind.
a key that opens a door.
A Master Key.
Henry Ford was buried in a cast bronze "Sarcophagus" casket manufactured by the (former) National Casket Company of Boston.
A key, or a Combonation
The answer for the homophones "opens lock" is "unlock."
a key
A monkey
the key event that opens the book of acts is the day of pentecost
It opens my computer