Not sure if this has been posted, but USPack Courier Service NY is running a promotion until the end of June where you can get 2 free Yankees tickets after 10 deliveries.

Kind of a lot of deliveries to make in a month, but if you have business in the Tri-State area it could be pretty easy to do. All you do is fill out the form online or call to set up an account. Here's the offer:

USPack Courier Service NY