Yes, another Gift box!, Full disclosure: I've never actually played any of the Portal games. I know people who have played them and loved them, but

Portal 2 Companion Cube Gift Box [The Coop] : Patio, Lawn & Garden

Toynk Portal Companion Cube 12 X 12 X 12 Flat Empty Gift Box : Target

Portal 2 Companion Cube 6 Gift Box: Buy Online at Best Price in UAE

Portal Companion Cube - Ireland

Companion Cube Pen Holder, Portal Inspired, Utensil Holder, Desk Organizer, Christmas Gift for Gamers - Hong Kong

Portal Weighted Companion Cube Aperture Science, Inc 3D Print - New Zealand

Portal Companion Cube Gift Box, Ring Box, Decor, Gaming Prop 6 Cm.

Companion Cube Portal 2 Portal Portal Cube Bridge Video Game Poster Vintage Cute Metal Sign Gift Retro Novelty Cafe Store Garage Tin Signs8x12 Inch : Everything Else

Portal Companion Cube Gift Box 3D Printing Model - Threeding