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Sourpuss machine
Sourpuss is a machine in Fiend Folio, a mod for The Binding of Isaac.
Description
Permanently smelts the currently held rock trinket in exchange for 1.5 
Soul Hearts.
When destroyed, has a 25% chance to drop 2-4 random coins. If this chance fails, there's an additional 10% chance for a random rock trinket.
If destroyed in The Chest or Dark Room, it will always drop a random rock trinket.
Exclusive to Golem's Subway. Appears on every even-numbered floor.
External links
- Check out the machine description on the mod's external Wiki.
- Download Fiend Folio from the Steam Workshop.
Mining Machine 
Bismuth Beggar 
Unfinished Golem 
Geode Golem 
Babi