It is indeed possible to create an order without adding products to the master catalogue. This is done by creating a Custom Order. (Note: The product entered while creating Custom order will be a run time product and will not be saved in Master Catalog)
Steps to Create Custom Order
Step 1. Go to Orders and click on the Add Order icon.
Step 2. Fill in all the Order related details such as:
Customer Details: This includes the billing and shipping details of the customer and the pick up address of yours.
Product Details: The Product run time will be created and it will be order specific.
Payment Details: All the payment related information with respect to the order, such as if the order is “Cash on Delivery /COD ” or “Prepaid”.
Step 3 : Click on the Add Order icon and your order will be created.