Here's how to build your own 'Portal' companion cube for less than $50

The process is easy and the result is incredible.

Hey Darlin! Garlic make a great companion plant! Companion planting wi

Portal Companion Cube LED Light-up Gift Box, Decor, Gaming Prop, Cosplay 9.5 Cm 3.74 Inch - Canada

How to Make a Low-Budget Weighted Companion Cube From the Portal Video Game Series

Portal: Companion Cube Storage Box : 9 Steps (with Pictures) - Instructables

Tube CAD Journal

PORTAL COMPANION CUBE

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DIY Companion Cube ring box for under $10 • Offbeat Wed (was Offbeat Bride)

Custom Order Large Portal Companion Cube - Canada