I now have a BitPay cart setup, so no need to set price before purchasing:

United States:
https://bitpay.com/cart/add?itemId=Hgqg6LoLs7LJmVaffQx8Ap

International:
https://bitpay.com/cart/add?itemId=CXkHcNqeF8tpmzeiZvzoNY

Available in several colors & made with quality outdoor-grade vinyl.  Allow 5-7 business days for processing.