Line a baking sheet with wax paper or a silicone baking sheet.

In a medium bowl combine the chow mein noodles and M&Ms. Reserve some M&Ms to put on top of haystacks.

In a microwave safe bowl combine the peanut butter chips with the shortening. MIcrowave according to package directions. About 1-2 minutes on high stirring until smooth.

Pour peanut butter chip mixture over chow mein noodle mixture and stir until everything is coated.

Working quickly, drop by tablespoonful onto prepared baking sheet, a few at a time. Top with a couple of M&Ms and sprinkle with some non-pariels to make them festive.

Allow to set for at least an hour before storing.