My Paint Extras
Don

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

Rainbow Source
Shara

Adds coloured water.

My Chisel
Don

A chisel that allows you to shape blocks.

Color Blocks
mt-mods

Contains colored building blocks.

My Workshop
Don

Workshop benches

Better Ice
TheFanne

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

Digilines Lightstone
1F616EMO

Digiline-controlled light-emitting colour blocks

My Appliances
Don

A basic set of appliances

My Flooring
Don

A basic set of flooring

My Wood Slopes
Don

Make slopes with wood blocks.

My Bricks
Don

Machine to make bricks out of common material

More Ladders
SkyBuilder1717

Adds more ladders and sticks!!!

Tinted Glass
1F616EMO

Colored glass

Prefab Redo
cheapie

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

Gates (wider)
Sokomine

Wide gates for easy walking through and keeping cattle inside

My Paths
Don

Dirt paths.

Ethereal: All-faces tree blocks
1F616EMO

All-faces tree block for Ethereal trees

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

My Default Glass
Don

Glass made from many default items

Stained Glass
andersje

Adds various stained glass blocks, originally by doyousketch2

Plasterwork
Sokomine

Add colored plaster coats to nodes

Steel bar blocks
sotha1

adds blocks made of steel bars (xpanes)

Aquamarine
RasPiManiac

Adds Aquamarine ore, ingots, etc.

Pink Lava
TenPlus1

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

Colored Sand
LoneSurvivr

Adds dyed variants for the default sand.

My Press
Don

A press to flatten steel

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

Embedded Lights
scr267

Decorative block embedded LED or Potlights

Brick Walls
philipmi

Adds brick walls from different types of bricks.

Tables
AwesomeDragon97

A simple mod that adds decorative wooden tables.

My Stone Paths
Don

Stone paths

Maple tree
Duvalon

Adds a maple tree placed during world generation.

X Clay
SaKeL

Adds hardened clay.

Stoneworks
TumeniNodes

Stoneworks simply adds some fun, and cool building options to Minetest.

My White Block
Don

a white block

Glostone Building Blocks
Wovado

Adds basic glostone-based building materials

Mycorners
Don

Put decorative corners on blocks.

Hexagonal
GreenXenith

Proof of concept for hexagonal nodes

WorldEdit Wall Block
SkyBuilder1717

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