Find 2 friends. Have one ask you to solve basic math equations while the other recites the alphabet backwards and asks you to recall every other letter. After that, have one person try to push a marble out of a circle with a straw while you try to keep it in the circle with another straw while reciting prime numbers starting at 1. While you do that, use your free hand to toss a tennis ball back and forth with the other person. You know, basic instrument flying stuff.

Or have they changed much on the cog test?