Stackable

2pc Pyramid - Classic Brain Teaser (discon-11080)

$7.95
Soma Cube Premium - Wooden Assembly Puzzle

$20.95
Twisted Gem - Stackable Puzzle

$16.95
Lonpos 200+ Puzzle Game

$17.95
Obelisk - Wood Stackable Puzzle

$17.95
Happy Cube – Happy Cube - six pack

$30.95
Pyramid - Key Chain Puzzle

$6.95
Tower of Babel - Stackable Puzzle

$17.95
Happy Cube – Profi Cube - six pack

$30.95
Triangulator

$11.95
Pomegranate, 12pc

Charley Harper: Tree of Life - 12pc Block Puzzle by Pomegranate

$22.95
Pomegranate, 12pc

William Morris - 12pc Block Puzzle by Pomegranate

$22.95
Happy Cube – Little Genius– six pack

$30.95
Happy Cube – Marble Cube – six pack

$30.95

Stackable puzzles don't require anything but gravity once they're together. But you have to figure out how to get them together, first.