There was a time before Portal 2. In that time we only had Portal and teasers from Portal 2. Sometimes we had leak-style teasers; like when someone managed to film a bit of a pre-release Portal 2. That happened with Cave Johnson versus the Mantis Men. It sounded like there would be Mantis Men.
So, where are the Mantis Men in Portal 2? Was the experiement… successful?
Turns out that the Mantis Men from Portal 2 live on only in t-shirt firm. Once again the ubergeeks at Think Geek have done a deal with the official IP holders of Portal 2 and won the rights to sell said Mantis Men t-shirts. Only in some parts of the world, though. Perhaps Aperture have a secret ubergeek retailer based in the UK that would be able to sell these Mantis Men t-shirts in Europe. Perhaps? No? Thought not.