batter and deep-fry his hands, to get his attention.
...
Fetched from his prison cell on the morning of 28 March 1757, Damiens allegedly said “La journée sera rude” (”The day will be hard”). He was first subjected to a torture in which his legs were painfully compressed by devices called “boots.” He was then tortured with red-hot pincers; the hand with which he had held the knife during the attempted assassination was burned using sulphur; molten wax, molten lead, and boiling oil were poured into his wounds. He was then remanded to the royal executioner, Charles Henri Sanson, who harnessed horses to his arms and legs to be dismembered. But Damiens’ limbs did not separate easily: the officiants ordered Sanson to cut Damiens’ tendons, and once that was done the horses were able to perform the dismemberment. Once Damiens was dismembered, to the applause of the crowd, his reportedly still-living torso was burnt at the stake. (Some accounts say he died when his last remaining arm was removed.)
Last person to be drawn and quartered in France, too.
Lead, huh? The period French drama Nicholas Le Floch had molten lead being poured down a guy's throat as COD as part of personal revenge for the sins of a father.
How about a molten lead enema?
“But it was the final torture that made Edward II’s death arguably the most famous in English royal history: a group of men pinned the deposed king beneath a mattress or table, pushed a horn into his anus, and then inserted a red-hot poker that burned out his internal organs. This grisly execution was supposedly devised to leave no visible mark on the body.”