How to process a payment by cashier's check

We have a supplier who requests that we pay with a cashier's check only.  We have POs and invoices processed and matched in the system already.  We will have to cut a check to our bank to issue a cashier's check drawn to the supplier.  What we want to show is that the supplier is paid not a bank.  How could this be accomplished in Oracle Payables.  We are in 11.5.10.2.
We are trying to see if they will take an ACH payment but I would like to find out if there is any way to record a cashier's check in Oracle Payables.