The customer is responsible for shipping and handling so the customer can request which shipping entity they want it to ship.  

There is also a two week use period.  The product (painting) will be sent to the customer. The customer will hang it in the space.  If, within two weeks, it doesn't work then send the product back.  Once I receive the product then the money will be returned.  The shipping will still be paid by the customer for both trips.