My Paint Extras
Don

Allows you to paint dirt, gravel, wood, trees and more.

Quartz New
alerikaisattera

Quartz and quartz glass building blocks

Legendary Ore
DynamaxPikachu

Adds legendary ore and blocks

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 Wood Slopes
Don

Make slopes with wood blocks.

Ethereal: All-faces tree blocks
1F616EMO

All-faces tree block for Ethereal trees

Colored Sand
LoneSurvivr

Adds dyed variants for the default sand.

Plastic Box
Starbeamrainbowlabs

Adds a recolourable plastic box. Fork of @cheapie's version with improvements.

Pizzas and cakes - pack 1
MatyasP

add some pizzas and cakes to 'pizzas'

Bouncy Mushrooms
AirplaneMan

Adds Bouncy Mushrooms to MT

Color Blocks
mt-mods

Contains colored building blocks.

Titanic Mod2
auto.umdenken

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

My Siding
Don

Adds lines on one side of block to make it look like siding

Nodecore Stucco
Avicennia_g

Adds a few decorative building nodes to Nodecore through simple and crude masonry.

Sundial
The4spaceconstants

Mostly game-independent sundial

Place Rotated
12Me21

Better slab/log placement

Tables
AwesomeDragon97

A simple mod that adds decorative wooden tables.

My Parkour
Don

Nodes for making a parkour track

Tac Nayn
GreenXenith

Adds Nyan Cat's evil twin, Tac Nayn (and a gray-scale rainbow).

Color Cubes
Wuzzy

This mod contains several colorful abstract blocks for decoration.

Extra Stone Utilities
XxCrisThor1012xX

Adds new uses of stone

Japanese Signs
saradaabura

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

Instabreak
Mint

Instantly break (most) construction blocks.

Better Fences (1F616EMO Redo)
1F616EMO

Allow fences to connect to all nodes

My Cobble
Don

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

Gizmo's Of Carbon Machinations
ThatGhzGamer

Adds various charcoal related items such as a Marvelous Hammer to Compress things, New Gear, New Diamonds, Charcoal and Willow Charcoal.

Zughy32 colored blocks
MisterE

Plain colored blocks from the Zughy 32 palette.

Tortou
LibraSubtilis

Turtle graphics, hyperloop travelingsystem and cubic mobs.

Poly Decor
mt-mods

My spin on decorative stuff.

Minetest Game Random Content
AirplaneMan

Adds random content with no particular theme

Parcdeco
Floatland

adds grass-like nodes that have flowers

NodeCore Pottery
Winter94

Adds clay and ceramic items and nodes to NodeCore

Invisible Blocks
Truemmerer

Add invisible Blocks

Plasterwork
Sokomine

Add colored plaster coats to nodes

Wheitestone
soeren

deco whitestone

Pole Scaffolding
SFENCE

Craftable pole scaffoldings. Support default game and Hades Revisited game.

Impenetris
AirplaneMan

The hardest rock on all of the worlds (except for bedrock)

Colored Strings
Alib234

Adds colored strings and allows to create wool from 4 strings and viceversa

Nameznik
MatyasP

Námezník / Fouling point marker, place where ends wide between tracks enough. For first, czech design.

NodeCore Vuga
Winter94

Generates Vuga Underground.