If there are several things we love, Space Invaders swag is somewhere on a list of those things, especially with Space Invaders Extreme so close, feeding our Invader mania. These keychains feature pink, blue, and yellow Invaders embedded in acrylic cubes like prehistoric flies in amber. Each order comes with three of them for $8.50.
It's up to you whether the awesomeness of the Invaders is worth cramming a big plastic cube into your pocket. That's a personal decision. Alternately, you could get a bunch of them and stack them in the classic Space Invaders configuration. Inside the clear cubes, they'd look vaguely like they were suspended in midair!