Skeleton Merchant

The Skeleton Merchant is an NPC that sells items and will also throw bones to fend off nearby enemies. He is found in the Underground and Cavern layers. He spawns randomly, similar to a bound NPC. Enemies will not spawn near any players close to him. He will not move into a vacant house, and will despawn when off screen.

His stock changes at 4:30 AM everyday and he does not need to respawn for it to do so. Unlike other NPCs, the Skeleton Merchant does not have a map icon.

Trivia

 * The names "Jack Sellington" and "Skellington" are references to Jack Skellington from "The Nightmare Before Christmas"
 * No-Eyed Willy could be a reference to One-Eyed Willy from "The Goonies"
 * The name "Mandible Calavera" is possibly a reference to Manuel "Manny" Calavera from "Grim Fandango"
 * The name "Billy Marrows" and "Gloomy Mays" is a reference to TV salesman Billy Mays.
 * The quote about Slime Oil is a reference to the "Miracle Tonic" peddlers of the 1800s, who were commonly called Snake Oil Salesmen.
 * The names "Rattles Magoo" and "Tom" could possibly be a reference to Tom "Rattler" Magoo from the TV series "The Other Day"
 * The quote about people throwing stuff at him is a reference to Diablo 3, in which a NPC named Squirt the Peddler says "I don't believe what people throw away. Wanna buy some of it?"
 * The quote "The only things constant in this world are death and taxes, I've got both!" is a reference to Benjamin Franklin's famous quote, "In this world, nothing can be said to be certain, except death and taxes."

Quotes

 * "You would not believe some of the things people throw at me... Wanna buy some of it?"
 * "I'd lend you a hand, but last time I did that, I didn't get it back for a month"
 * "You've got a real backbone coming way down here, how 'bout ya buy somethin?"
 * "Stay away from the spiders. They'll suck out your insides and leave you a hollow shell of a man. Trust me on this one."
 * "Excellent! Someone's finally come by to take some of these maggots off my hands."
 * "There's no illness or condition that can't be cured by some of my Slime Oil! Trust me, it works, just look at my lively figure!"
 * "The only things constant in this world are death and taxes, I've got both!"
 * "Got any spare bones for sale? I'm looking to replace my broken hip... again."