Based on the Portal 2 video game, hako-type paper models of Wheatley (aka Intelligence Dampening Sphere / blue), Fact Sphere (pink), Adventure Sphere (aka Rick / green), and Space Sphere (yellow).
Wheatley and the Corrupted Core Papercrafts [Download]
Portal Papercraft - Weighted Companion Cube [Related Posts]
Portal Papercraft
Portal - GLaDOS Papercraft
Portal - Turret Papercraft
Portal Papercaft - Cake