C3PX said:
It should be pretty easy to make a pair. All you need is a cheap pair of sunglasses (dollar store), and some blue and red plastic wrap, or some clear plastic wrap and a blue and red marker. Pop out the lenses and put the plastic wrap over the holes. Might look a bit ghetto, but I think it should work.

Actually, you could probably just take the back of a plastic CD case, or any other clear pice of plastic and color a section blue and a section red and look through that. Be kind of weird, but also quick and easy.

screwy pc just gave a double post, read below for my real answer