Create with Color!

Eco-bricks™ Natural and Color Blocks

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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™

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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

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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.

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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!


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

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NEW Builder Boxes

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

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Compatible Action Figures

Playhard Heroes and Villains

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Eco-bricks™ Color Blocks

Natural and Color Blocks to Personalize.

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Wanderlust Themed Sets

Wood + Felt City Blocks

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