Check out these miniatures!
You can see more photos and read the full writeup on Polygon. I'm just thinking of all the uses for Portal minis now:
Give one of our Shas'uis a portal gun
Make the companion cube an objective marker
Surprise RPG players by changing the "dungeon" into a test chamber
Just imagine teaching someone to play Fate, Dungeon World, or Pathfinder by throwing their character into the Enrichment Centre. ^^ Or using the slices of cake (not pictured above) as victory points in 40k or another game.
... did I mention I am apparently good at impersonating GLaDOS?