Here are a couple of alternatives. Haven't tried them.
http://www.instructables.com/id/EHJ6O7QBOUEP287NIX/
http://www.instructables.com/id/EKS9VW34EYEP287JGD/
Let us know which works best.
http://www.instructables.com/id/EHJ6O7QBOUEP287NIX/
http://www.instructables.com/id/EKS9VW34EYEP287JGD/
Let us know which works best.