Create with Color!

Eco-bricks™ Natural and Color Blocks

Shop Eco-bricks™
Eco-bricks™ Plus Wooden Block Castle Construction Building Set
Once Kids Eco-bricks™ Plus Wooden Building Blocks Toy

Eco-bricks™ Plus

Large Size Building Blocks
Compatible with Eco-bricks™

Shop Eco-bricks™ Plus
Eco-bricks™ Bamboo Wooden Block Castle Construction Building Set
Once Kids Eco-bricks™ Bamboo Robot Wooden Blocks Building Toy Robot

Eco-bricks™ Bamboo

Sustainable Bamboo with Felt Stickers
Antimicrobial Properties to Stay Clean

Shop Eco-bricks™ Bamboo
Wooden Action Figures Playhard Heroes Villains
Once Kids Action Figures Playhard heroes Compatible with Eco-bricks™ Plus Blocks

Action Figures

Save the World!
Compatible with Eco-bricks™ Plus+ and Plastic Blocks.

Shop Action Figures
Wanderlust Wood and Felt City Block Play Set
Wanderlust Once Kids Play Set New York Blocks

Wanderlust Series

City and Themed Blocks
Wood Blocks + Felt Spun from Recycled Plastic Bottles.

Explore Available Cities

NEW Subscription Boxes!

Eco-bricks ™ Builders Box
Each box set directs a themed experience in a new color pallet.
Submit your designs online in our Build Contest. Free Shipping!

ORDER NOW

The World’s First All-Wooden Building Block System for Environmentally Friendly Families!

In 2014, Once-Kids became the world’s first ever 100% compostable wooden construction building block system, compatible with the plastic interlocking blocks families might already have. Once-Kids has now grown to offer multiple environmentally-friendly toy options, including our Eco-bricks™ Bamboo, Color, Plus size blocks, and Compatible Action figures and Minifigures!
Patented System

See Our Products

Featured Collection

View all

NEW Builder Boxes

Bimonthly Builder Box Subscriptions.
Themed Sets of Color and Natural Blocks to Challenge your Imagination.

Learn More

Compatible Action Figures

Playhard Heroes and Villains

Buy Now

Eco-bricks™ Color Blocks

Natural and Color Blocks to Personalize.

Shop Now

Wanderlust Themed Sets

Wood + Felt City Blocks

Explore Now