The Outer Planets Alliance (Opa) is a loosely affiliated network borrowing or associating under a core common ideology. It started its life as a labor union or advocacy group, fighting for the interests of inhabitants of the Belt and was often in direct conflict with the inner planets -- Choose from our vast selection of magnets to match with your desired size to make the perfect custom magnet. Pick your favorite: Movies, TV Shows, Art, and so much more! Available in two sizes. Perfect to decor…