Want to add a dash of randomness to your paycheck? Gift your finance department with a box of Wrongulators, calculators that never give correct results.
Sure, anyone with an ounce of sense will probably recognize something isn't right when they put in 10 + 5 and get 10 as a result. But maybe not! Maybe you will suddenly be making 10 times as much money! Or 1/10th as much! What a fun game to play, right? All for only $7! I don't see how you can go wrong.