My Lava Sponge
Don

Soaks up lava

Tile Floors
ClassicAdam

Various colors of tile flooring in 16px and 256px res

Invisible Blocks
Truemmerer

Add invisible Blocks

Spectator Mode
jp

Allows you to watch other players in their 3rd person view.

Archaeology
SkyBuilder1717

Adds an looting and API in archaeologing

Plasterwork
Sokomine

Add colored plaster coats to nodes

Area-Locked Chests
1F616EMO

Locked chest that check protections

Sugar
X17

Adds eatable sugar made of papyrus and a sugar block

Carrying
Zeralyth

Adds carrying players around.

Rainbow Source Redo
DumbDave961

Fork of Rainbow Source by Shara. Adds coloured water and buckets.

Cute Pie
Don

Cute blocks

Metal Working
csirolli

Hammer and anvil for repairing tools.

Technic Grass Clean
1F616EMO

A tool like chainsaw, but cut grass, not tree.

Tungsten Carbide
RemainderTheorem

Adds tools made from tungsten carbide that are more durable.

Ancient Ice Stuff
Robot10&Scheletor

Adds a new powerful ore to the game

My Cobble
Don

This is a simple mod that lets you turn cobble into gravel and gravel into sand

BitChange
Krock

Money items for your world. You can mine bitcoins. Sort of.

TurtleMiner
BirgitLachner

A Mod to let Kids start programming with a turtle that can move around in the world, and dig and build what the user wants.

Scraps
Goops

Allows to recycle metal tools

Blood Bane Sword
Blocky Player

OP sword for moderators. In memory of an old teacher, who had a mod similar to this on a private server.

Compactor
alerikaisattera

A Technic based machine for converting certain items into more compact forms

Boots of Swiftness Mod
ClothierEdward

Adds a new pair of boots called the Boots of Swiftness.

My Blocks
Don

Special Blocks

Livetools
AiTechEye

Craft tools which have a life of their own - they can fight, dig, or place for you

Fareboxes and Faregates
1F616EMO

Signal-emitting fareboxes and faregates

New Economy
Aa1a

Add 3 coins in game ( gold , steel , diamond )

Autobuilder
limafresh

Adds a GUI for building cubes with customizable width, height, and length.

Sun Flowers
Hybrid Dog

This mod generates flowers which close their heads at night.

Technic Recipes
alerikaisattera

Extra recipes for processing various items with Technic machines

golden lava
Giga_M

add golden lava

Trucraft
mt-mods

An alternative crafting system done entirely in the world.

LWComponents Spawners
mt-mods

Register spawners for lwcomponents.

Purple ore
X-DE

Adds new purple ore to floating islands and caves from height 200 to 31000.

My Torches HD
Don

Changes default torches to ones that burn out and cause damage

Underground Survival Lighting
Arkatron

If you like underground light in survival, use this mod, it can help that.

Spawn redo
cathaya7d4

Drop-in replacement for default/spawn for more third-party biomes

Prop Hunt Modpack
Jo5629_

Transform into nodes and with a minigame.

Respawn Kit
Deadlock

Adds a "respawn-kit"-Chest. A Copy of everything you put in it, will be given to you on respawn. (With configurable Black/White-List)

Slot Machine Mini-games
mt-mods

Provides an "engine" to drive simple slot machines (includes two). Spins reels, takes in/pays out in Minegeld (Dan's currency mod), etc.

Tables
AwesomeDragon97

A simple mod that adds decorative wooden tables.