I were able to portal behind the red laser fence and grab the cubes. Not very hard. I suggest of blocking up the ends or your test subjects will be stuck; either add portalable pancel inside the creeper at the bottom or black up the back end of the eyes.

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Please volunteer your time to test my new chambers to rate and give feedback - Cheers!
http://cs2bus.com/sharedfiles/filedetails/?id=80836181

Awesome