Just put some LED rope lights behind some round mirrors and you should get something resembling the portals seen in their namesake game. The Glados cameras would make for neat spotlights.
Portal Mirrors And Lights
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Published by Dave Delisle
Designer, Blogger, and Hockey Fan! Go Flames Go! View all posts by Dave Delisle
AAnother great design that would cause my bank balance to take a hit. look forward to seeing more.