Objects

Pickups
Hearts	Coins	Bombs	Keys	Batteries	Pills	Cards	Runes	Objects			Chests	Sacks
								Glass Dice	Trial Discs	Miscellaneous Objects

Objects are consumable pickups in The Binding of Isaac: Rebirth that don't fall into the same category as pills, cards and runes.

Fiend Folio adds 28 new objects to the game, including many new varieties such as glass dice and trial discs.

Objects

Glass Dice

Glass Dice are special objects that work as single-use versions of their item counterparts.

Name	Appearance	Mimic Charge	Flavor Text	Description
Glass D2			"Reroll but throwable!"	Activates the D2 effect, throwing it onto the floor temporarily and rerolling any pickups, enemies and tears passing through it.
Glass D4			"Reroll into something else"	Activates the D4 effect, rerolling all of the player's items into a random item from the item pools they were acquired from.
Glass D6			"Reroll your destiny"	Activates The D6 effect, rerolling all items in the room into items from the current room's item pool.
Glass D8			"Reroll stats"	Activates the D8 effect, rerolling the user's speed, range, tears and damage stats.
Glass D10			"Rerolls enemies"	Activates the D10 effect, rerolling all enemies in the room into weaker enemies.
Glass D12			"Reroll rocks"	Activates the D12 effect, rerolling all obstacles in the room into other obstacles.
Glass D20			"Reroll the basics"	Activates the D20 effect, rerolling all pickups and chests in the room.
Glass Spindown			"-1"	Activates the Spindown Dice effect, rerolling all items in the room by reducing their internal ID by 1.
Glass Azurite Spindown			"-1, but for Trinkets"	Activates the Azurite Spindown effect, rerolling all trinkets in the room by reducing their internal ID by 1.
Glass D100			"REEROLLLLL!"	Activates the D100 effect, incurring the effects of The D6, D20, D4, D10, D12, D8, D7, and D1 all at once.

Trial Discs

Trial Discs are special objects that grant the effects of items temporarily, disappearing after 1 minute.

Name	Appearance	Mimic Charge	Flavor Text	Description
Treasure Disc			"1-minute free trial!"	Grants 3-5 random item effects from the Treasure Room item pool for 60 seconds.
Shop Disc			"1-minute free trial!"	Grants 3-5 random item effects from the Shop item pool for 60 seconds.
Secret Disc			"1-minute free trial!"	Grants 3-5 random item effects from the Secret Room item pool for 60 seconds.
Boss Disc			"1-minute free trial!"	Grants 3-5 random item effects from the Boss item pool for 60 seconds.
Devil Disc			"1-minute free trial!"	Grants 3-5 random item effects from the Devil Room item pool for 60 seconds.
Angel Disc			"1-minute free trial!"	Grants 3-5 random item effects from the Angel Room item pool for 60 seconds.
Planetarium Disc			"1-minute free trial!"	Grants 3-5 random item effects from the Planetarium item pool for 60 seconds.
Chaos Disc			"1-minute free trial!!!"	Grants 3-5 random item effects from random item pools for 60 seconds.
Broken Disc			"1-minute free free free free free free"	Grants 3-5 copies of the effects of a single random item for 60 seconds. Will only provide the player with items that have an effect when stacked. See: Item Tags stackable
Tainted Treasure Disc			"1-minute free trial?"	Grants 3-5 random item effects from the Tainted Treasure item pool for 60 seconds. Can only appear if Tainted Treasure Rooms is installed. See: Tainted Treasures Compatibility

Miscellaneous Objects

Miscellaneous Objects that don't fall under the other two categories.

Name	Appearance	Mimic Charge	Flavor Text	Description
Blank Letter Tile			"Choose your letter!"	On use, the next button the player presses on their keyboard or controller will grant +1 fire rate and +1 flat damage while the selected button is being held down. This effect ends upon leaving the floor.
Brick Separator			"Separate your enemies"	Activates the effect of Meat Cleaver, splitting all enemies in the room into two smaller versions with 40% HP each, and Isaac's tears will become orange and piercing for the room. Any stacked Studs in the room will explode, dealing 20 damage to enemies caught in the blast and splitting into individual Studs. Any Stud Pennies in the room will be converted into Studs.
Cool Photo			"This will fetch a nice price!"	Drops 1-2 Pennies. Can only be spawned by Toy Camera, or by Lost Flower Crown.
Green House			"Evicted"	Clears all enemies and pickups in the room, causing them to reappear in the next room.
Horse Push-Pop			"Stick yourself back together!"	Removes 1 Broken Heart. Can only appear when playing as China.
Puzzle Piece			"Complete it!"	Completes 1/3 of a puzzle fortune. Spawns a prize on completing the fortune. The prize spawned is related to the resulting fortune.
Top Hat			"Instant capitalism!"	Summons an opened Shop Chest.
Stud			"Watch your step"	On use, spawns a single Stud Penny. Will stack with other Studs that are picked up, up to 6. When used, while stacked, spawns one Lego Stud and reduces the stack by 1.
Christmas Cracker			"Pull!"	Creates a small harmless explosion, dropping another random object and displaying a random Christmas-themed joke fortune on screen.

Notes

• Cracked Key, Dice Shard, and Emergency Contact also count as objects.
• Like with runes, two objects can be held if Isaac has Starter Deck, but will be replaced by pills if Isaac has Little Baggy.
• Objects cannot be copied with Blank Card, Clear Rune or Placebo, and are not affected by Tarot Cloth. Rather, they can instead be copied by their respective object-mimicking item added in Fiend Folio, Perfectly Generic Object.

Voiceovers

Trial Disc	Voiceover / Jingle
Treasure Disc
Shop Disc
Secret Disc
Boss Disc
Devil Disc
Angel Disc
Planetarium Disc
Chaos Disc	Jingle is made up of sections of 3 other jingles, played at different speeds
Broken Disc	Jingle is made up of a few notes from a random jingle, repeated 3 times over with a record scratch
Tainted Treasure Disc

Unlock Conditions

• 

  Brick Separator — Complete Brick By Brick.

• 

  Green House — Complete Dad's Home+.

Trivia

• Glass D2 had a sprite in the Afterbirth+ version of the mod similar to the normal D2, but did not have any code.
• Green House and Top Hat are both pieces from the board game, Monopoly.
• Blank Letter Tile is a piece in Scrabble, where it serves as a "wild card".
• Brick Separator is a tool sold with some Lego sets.
• Stud appears as a Part 4073, a common building piece also found in Lego sets which is nicknamed the "Stud".
  • Stud's capability to summon a coin variant is a reference to the usage of the Lego part in Lego Video Games as currency. Picking up a Stud Penny will make the same sound as Studs from said games, specifically the purple Stud.
  • Its effect of damaging monsters and Isaac is a reference to the common cliché of Lego pieces being extremely painful to step on.
• The descriptions of stacked Studs will gain exclamation marks depending on the amount of Studs in the stack, ie. the text will show as "Watch your step!!!!!" with a stack of 6 Studs.
• Studs and Stud Pennies were added in V2.5, however their ability to be stacked with each other was only added later in The Spitshine Update.
• Christmas Cracker was added in The Spitshine Update.

Gallery

• 

  Appearance of various Stud stacks in player's inventory.

• 

  Green House's achievement unlock card.

• 

  Brick Separator's achievement unlock card.