Getting started:
Get book "Found Knowledge Vol. 1" to get started. You can craft it at a tanning rack with one gold coin. There is no need to "read" the book, however doing so gives one Smithing skill-up (only once).

You will need to have the book in your inventory to be able to see the items at a Forge. The requirement exists to keep the item list clean-ish when you don't want to craft this stuff. There are (currently) approx. 158 items after all and you probably have other mods that adds stuff.

For the Real Dragon Claw's crafting, you will have to do their related quests first (except Diamond Dragon Claw which can be crafted a little earlier).
Replicas of the claws can be crafted before quests, but they will not work as a real key and they are classified as Clutter instead of Claw. Their sell value is also 1/4 of the real deal.

Gives two choices for Quills and six choices for Linen Wraps (different material requirements). Linen Wraps are craftable from most statless clothes.
Other notable items are some raw materials like glass and straw, Bug Jars, lockpicks and torches... and obviously the Skeleton Key*.

Material requirements are as logical as I could think of. However my logic might suck, so feel free to tell your ideas!

Full-ish list of items:

Bug Jars

• Bee in a Jar
• Butterfly in a Jar
• Dragonfly in a Jar
• Moth in a Jar
• Torchbug in a Jar
  

Dragon Claws (normal and replica versions)

• Coral Dragon Claw
• Diamond Dragon Claw
• Ebony Dragon Claw
• Emerald Dragon Claw
• Glass Dragon Claw
• Golden Claw
• Iron Dragon Claw
• Ivory Dragon Claw
• Ruby Dragon Claw
• Sapphire Dragon Claw
• Amethyst Dragon Claw (both halves)
  

Dwemer stuff

• Bent Dwemer Scrap Metal
• Dwemer Bowl (3 models)
• Dwemer Cog
• Dwemer Cup (3 models)
• Dwemer Dish
• Dwemer Gear
• Dwemer Gyro
• Dwarven Knife
• Dwemer Lever
• Dwemer Pan
• Dwemer Plate
• Dwemer Scrap Metal
• Large Decorative Dwemer Strut
• Large Dwemer Plate Metal
• Large Dwemer Strut
• Small Dwemer Plate Metal
• Solid Dwemer Metal
  

Kitchenware

• Bloody Tankard
• Bowl (6 models)
• Cast Iron Pot (2 models)
• Cup (2 models)
• Flagon
• Fork (usable weapon)
• Goblet (4 models)
• Kettle
• Knife
• Plate (4 models)
• Platter
• Silver Goblet (2 models)
• Silver Jug
• Tankard
• Wooden Bowl
• Wooden Ladle
• Wooden Plate
  

Other

• Bellows
• Broom
• Clothes Iron
• Embalming Tool (4 models)
• Hammer
• Pitchfork (2 models)
• Saw
• Shovel (2 models)
• Tongs
• Torture Tools
• Basket (8 models)
• Bucket (3 models)
• Bloody Rags
• Candlestick (3 models)
• Charcoal
• Child's Doll
• Dibella Statue
• Drum
• Empty Skooma Bottle
• Empty Wine Bottle (7 models)
• Firewood
• Flower Basket
• Flute
• Inkwell
• Jug (6 models)
• Lantern
• Linen Wrap
• Lute
• Pot (4 models)
• Quill
• Roll of Paper
• Silver Candlestick
• Spigot
  

• Glass
• Dragon Bone
• Human Skull
• Troll Skull
• Straw
  

Usable items

• Skeleton Key (Complete quest: Darkness Returns or get another book from a cave)*
• Shiv
• Wooden Sword
• Woodcutter's Axe
  

• Lockpick
• Pickaxe
• Torch
• Fork
• Ancient Nordic Pickaxe
  

Quest items

• Meridia’s Beacon (replica only)
• Focusing Crystal (Complete quest: Revealing the Unseen)
• Dragonstone (Complete quest: Bleak Falls Barrow)
• Ruby, Sapphire, Emerald, Amethyst and Diamond Paragons (Complete quest: Touching the Sky)
• Attunement Sphere (you can now melt these as there was no other way to get rid of them)
• Golden Ship Model (Complete quest: The Burglary Job)
• Golden Urn (Complete quest: The Burglary Job)
• Ornate Drinking Horn (Complete quest: The Burglary Job)
• Jeweled Flagon, Goblet, Candlestick and Pitcher (Complete quest: The Burglary Job)
• Model Ship (Complete quest: Speaking With Silence, you would find the original during this quest)
• Puzzle Cube (Complete quest: Hard Answers, you would find the original during this quest)
• Queen Bee Statue (To unlock, pick up the real one first from Goldenglow Estate)
• Honningbrew Decanter  (To unlock, pick up the real one first from Honningbrew Meadery)
• East Empire Shipping Map (To unlock, pick up the real one first from East Empire Company Warehouse)
• Bust of the Gray Fox (To unlock, pick up the real one first from Riftweald Manor)
• Left Eye of the Falmer (To unlock, loot it from Mercer Frey's cold dead hands)
  

Ingots**

• Gold Ingot (requires... gold coins. Duh.)
• Silver Ingot (from unenchanted Silver weapons)
• Iron Ingot (from basic iron weapons, shield, arrows, Pickaxe and Woodcutter's Ax)
• Steel Ingot (from basic steel/imperial weapons, shield and arrows)
• Quicksilver Ingot (from basic Nordic weapons, shield and arrows)(Note: Nordic as Dragonborn DLC stuff, not Ancient Nordic from tombs etc.)
• Dwarven Metal Ingot (from basic Dwarven weapons, shield, arrows and a few other Dwarven artifacts)
• Orichalcum Ingot (from basic Orcish weapons, shield and arrows)
• Ebony Ingot (from basic Ebony and Daedric weapons, shield and arrows)
• Moonstone Ingot (from basic Elven weapons, shield and arrows)
• Malachite Ingot (from basic Glass weapons, shield and arrows)
  

* Notes about the Skeleton Key:
1. Getting it is pretty simple: complete the required quest (preferred for immersion reasons), or fetch a book named Found Knowledge Vol. 2 from a new cave near Twilight Sepulcher door (to the right when facing the door).
2. If or when you want to get rid of the key, simply dropping the key wont fully work since hidden Skeleton Key perk stays active. Instead, go to a forge or smelter and "craft" the "Skeleton Key - Remove" in there. It removes both the key and the perk as intended.
3. If you have crafted Skeleton Key before starting quest "Blindsighted", it would be safer to remove it before starting the quest.

** Notes about Ingot crafting:
1. It is not very efficient way to get ingots only from weapons, due they weigh always over 9 points (except daggers) and you get only maximum of two ingots. This is to ensure that mining wont become obsolete.
2. Ingot crafting happens obviously at Smelters. You cannot destroy weapons using an anvil.
3. You can't see what you can't craft.

How to install:
1. Download and install it. No need for starting a new game.
2. To see the new craftable items, create the Found Knowledge Vol. 1 at a tanning rack. It costs one money coin and is weightless.

How to uninstall:
1. If you have crafted Skeleton Key, you will need the mod to remove it properly: load up the save game you wish to keep playing on, go to a forge/smelter and select the "Skeleton Key - Remove" item. This will properly remove the skeleton key from your character.
2. Save the game and close it. Then you can remove the mod as normal. 
Note: If you have not crafted the Skeleton Key, you can delete the mod as you normally would.
3. Live in regret.

To-do:
Maybe Your ideas.
Probably remove "replica" items all together since they are kinda pointless, am I right?

Changelog:
2.1.0: Some of the Larceny items were "left out" from crafting lists. Welcome: Queen Bee Statue, Honningbrew Decanter, East Empire Shipping Map, Bust of the Gray Fox and Left Eye of the Falmer. The requirement is to first find those items from the world. However you don't have to return them to Delvin before you can craft them.
2.0.1: Apparently there were duplicated dwarven mugs. It should be fix'd now.
2.0.0: I added around 18 more items. Many other items need less materials to craft mostly for weight balancing purposes.
Nearly all ingots are now craftable at Smelter using unenchanted weapons and shields from the base game.
Dwemer ingots can be now smelted from Dwemer items that are not kitchenware.
Small tweaks on crafting materials to prevent endless crafting loop between two items...
All (?) Thieves Guild repeatable quest items are now craftable (Complete Thieves Guild quests first). Nope, you cannot exploit this feature to easily complete burglary jobs as you still have to steal the actual quest item.
Ancient Nordic Pickaxe added for crafting (Complete quest "An Axe to Find" first).
A few more items added to craft those linen wraps. I believe some boots can give you leather.
"Found Knowledge Vol. 1" costs one coin to craft and is weightless. Now it's available at tanning racks as well.
The gate from Skeleton Key book's cave was removed because reasons.
Skeleton Key's replica removed.
Oh. And the Unofficial Patch is now required.
1.4.0: Added Attunement Sphere. Attunement Spheres are smeltable in Smelters for dwarven ingots after related quest is completed. Roll of Paper and Glass weight reduced to 0.5. Straw's crafting material amount requirement increased to 10. Amethyst Dragon Claw (Replica) crafting material changed.
1.3.3: Added straw, two more empty wine bottles and skulls. Minor changes on crafting requirements for bone stuff.
1.3.2: Added Woodcutter's Axe and Pickaxe.
1.3.1: Added second option to craft Roll of Paper.
1.3: Fix'd Golden Claw's issue with display stands (thanks to jjb54 for reporting it and for the troubleshooting!) Added more stuff: Paragons, various quest item replicas and functional Skeleton Key (read notes before crafting or suffer).
1.2: Fix'd/added torch and Skeleton Key replica.
1.1: Added Dragon Bone and small tweaks on material requirements on a few items. If you need to craft Linen Wraps, now is good time to update.
1.0: Release