WorldEdit Wall Block
SkyBuilder1717

Adds block and item for making big structures easily as possible.

Ethereal Mosses
1F616EMO

More mosses for dirt types in Ethereal NG

Glass
AntumDeluge

Enhances default glass to make it colorable.

Gates (wider)
Sokomine

Wide gates for easy walking through and keeping cattle inside

K Color Blocks
ketwaroo

Adds specific stainable blocks for building stuff in creative mode. Comes with a rainbow wand for applying the tints.

Steel
mt-mods

Adds a range of steel materials that are recyclable.

Columnia
mt-mods

Adds simple pillars and columns

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

Kotatsu Tables
Piezo_

Adds a new piece of furniture based on Japanese kotatsu tables

Tables
AwesomeDragon97

A simple mod that adds decorative wooden tables.

Bell Chimes
sorcerykid

Adds a set of church bells that are chimed automatically at different periods.

Architect's planner
MatyasP

Add planning plains for loading the textures (sketches)

Prefab
mt-mods

Adds pre-fabricated concrete elements.

Quartz New
alerikaisattera

Quartz and quartz glass building blocks

awuuwa's Building Blocks
awuuwa

various building blocks

Node houses
MatyasP

Node houses is a mod by MatyasP that adds one-node block of houses, for crafting using items from mode default.

Colored Sand
LoneSurvivr

Adds dyed variants for the default sand.

CreNodes
gtzi203

Adds useful nodes for the creative mode, like barriers or light nodes.

Hexadecimal Colours
erov

Adds nodes with colour palattes for each 3 character hex value like #fff

Pizzas and cakes - pack 1
MatyasP

add some pizzas and cakes to 'pizzas'

Template to Easily Make Fancy Voxelized Models
Noodlemire

Provides voxelmodel.obj, a model designed to be shaped by changing its texture, in order to easily create fancy voxelized models.

My Paint Wood
Don

Paint wood

Better Roads
DragonWrangler

allows players to make roads with less jagged edges

Steel bar blocks
atum785

adds blocks made of steel bars (xpanes)

Maple tree
Duvalon

Adds a maple tree placed during world generation.

NC More Storage
Winter94

Adds More Storage Containers to NodeCore

Tortou
LibraSubtilis

Turtle graphics, hyperloop travelingsystem and cubic mobs.

Pink Lava
TenPlus1

Adds pink lava to certain depth of map with new mahogany obsidian block

Fake Solids
Holly Mae

Creates fake blocks that can be walked through.

Titanic Mod2
auto.umdenken

Addition to "Titanic Mod", adds several nodes in the style of the RMS TITANIC

Simple Models
AntumDeluge

Very simple models.

Lapis Lazuli
LNJ

Adds lapis lazuli ore, items and blocks.

Autobuilder
limafresh

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

Japanese Signs
saradaabura

This will add signs that support Japanese to the game (Mineclonia).

More Curves
Just_Visiting

Adds 10 new curve shapes to game.

Ethereal: All-faces tree blocks
1F616EMO

All-faces tree block for Ethereal trees

ColoredCement
Truemmerer

Add Cement Blocks with unifieddyes support

My Bricks
Don

Machine to make bricks out of common material

8Segmentdisplayblocks
unacceptium_core

8 segment digital display as blocks

Asbestos
AirplaneMan

Useful Fire Proof Asbestos for your world