Stairs and slabs of wool
X-DE

Stairs and slabs of wool

Cube Nodes
Andrey01

Adds colorful blocks with various symbols as letters, digits, punctuation, emoji and special signs.

Abritorch
mt-mods

multicolored torches

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

Embedded Lights
scr267

Decorative block embedded LED or Potlights

Pillars
citorva

Add a lot of pillars for fun.

My Cobble
Don

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

My Default Lights
Don

Simple lights made from default material

Stained Glass
andersje

Adds various stained glass blocks, originally by doyousketch2

Tinted Glass
1F616EMO

Colored glass

My Mason Hammer
Don

A hammer to make stairs, ladders and footholds

Glostone Building Blocks
Wovado

Adds basic glostone-based building materials

Gates (wider)
Sokomine

Wide gates for easy walking through and keeping cattle inside

My Default Glass
Don

Glass made from many default items

Kotatsu Tables
Piezo_

Adds a new piece of furniture based on Japanese kotatsu tables

Better Ice
TheFanne

Modifies ice so that it melts into water when broken, and will be melted by torches

Steel bar blocks
sotha1

adds blocks made of steel bars (xpanes)

Aquamarine
RasPiManiac

Adds Aquamarine ore, ingots, etc.

WorldEdit Wall Block
SkyBuilder1717

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

Saphire
Ryft77

Adds saphire stuff

X Clay
SaKeL

Adds hardened clay.

Prefab Redo
cheapie

Cheapie's version of Dan's old prefab mod, which adds pre-fabricated concrete elements: catwalks, benches, ladders, railings...

Color Blocks
mt-mods

Contains colored building blocks.

My Default Fences
Don

Adds more default fences

Tac Nayn
GreenXenith

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

Blox
mt-mods

Adds lots of differently colored and textured blocks to Minetest.

ColoredCement
Truemmerer

Add Cement Blocks with unifieddyes support

Rainbow Source
Shara

Adds coloured water.

Tile Floors
ClassicAdam

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

My Mulch
Don

Turns leaves and other items to mulch blocks

Protector Redux
sorcerykid

An efficient and flexible node-based protection scheme for multiplayer worlds

More Ladders
SkyBuilder1717

Adds more ladders and sticks!!!

Pink Lava
TenPlus1

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

nodeu
ulla

metal blocks stair railing coloured

More Mese Post Lights!
1F616EMO

Add more mese post light

Colored Sand
LoneSurvivr

Adds dyed variants for the default sand.

Legendary Ore
DynamaxPikachu

Adds legendary ore and blocks

Ethereal Mosses
1F616EMO

More mosses for dirt types in Ethereal NG

Floating Anchor
Starbeamrainbowlabs

ExtraUtilities' Angel Block for Minecraft in Minetest! Place structures in mid-air with ease.

Parcdeco
Floatland

adds grass-like nodes that have flowers