Portal]Turret Drone by StarFoth -- Fur Affinity [dot] net
Matt Vukojevic on Twitter: "@greentheonly This looks exactly like the Portal Turret! Hahaha one C&D to the next one @elonmusk https://t.co/95Owcm01in" / Twitter
Turrets - Portal Wiki
Miniature Turret - Etsy
Life Sized Portal Turret | Life size, Turret, Portal
drone portal to the multiverse by the Flying Hawaiian .com | SkyPixel
Oblivion: the unofficial Half-Life/Portal movie – Jessica Straw