All Hypixel UHC Items:

Weapons and Tools
Vorpal Sword: Smite II and Bane of Arthropods II Iron Sword
Dragon Sword: Diamond Sword with a base damage of +8, rather than +7
Philosephere's Pickaxe: 3 use Fortune II Diamond Pickaxe

Armor
Spiked Armor: Thorns I Protection V Green Leather Tunic
Seven-league Boots: Feather Falling 3 Protection 3 Diamond Boots
Tarnhelm: Protection I Fire Protection I Aqua Affinity III Diamond Helmet
Dragon Armor: Protection IV Diamond Chestplate

Food
Delicious Meal: 8 Steak
Eve's Temptation: 2 Apples
Healing Fruit: 1 Melon
Light Apple: Golden Apple

Alchemy
Potion of Toughness: Resistance I Potion
Holy Water: Absorption II Potion for 2:00
Nectar: Regeneration II Potion for 0:08
Golden Head: Stronger Gapple (Regen II 0:10)
Dust of Light: 8 Glowstone
Brewing Artifact: 1 Netherwart
Nether Artifact: Blaze Rod

Books
Book of Thoth: ????????
Book of Protection: Protection I Book
Book of Artemis: Proectile Protection I Book
Book of Sharpening: Sharpness I Book
Book of Power: Power I Book

Enchanting
Light Enchanting Table: Enchantment Table
Enchanting Pack: 8 Bottles o' Enchanting

Economy
Iron Economy: 10 Iron Ingots
Leather Economy: 8 Leather
Arrow Economy: 20 Arrows

Other
Light Anvil: Anvil
Obsidian: 1 Obsidian
Pandora's Box: Special Chest which has a random set item in it (Also, it can spawn the Ender Dragon)

Extra Ultimates
King's Rod: Luck of the Sea III Lure III
Artemis' Bow:: Bow which does the damage of a Power III bow with 25% chance to shoot a lock-on arrow (lock-on arrows may not deal Power III damage)
Chest of Fate: Chest either gives you Absorption or blows up in your face (?)
Voidbox: 2 Ender Chests
Dice of God: Similar to Pandora, but it can give you any Extra Ultimate.
Axe of Perun: Diamond Axe which strikes lightning on hit (~3s cool down)
Death's Scythe: Takes 20% of a player's health on hit
Andūril: Sharpness I iron sword which gives Speed I and Resistance I to the wielder
Excalibur: Sword which creates an explosion of sorts that makes fire
Cornucopia: 5 golden carrots which give Absorption I and Saturation for 10 minutes
Exodus: Diamond helmet which gives the user Regen I for 2.5s on hit
Hide of Leviathan: Prot IV Respiration V diamond leggings
Essence of Yggdrasil: 32 Experience Bottles

That Took A While