It's a great idea to run a test print for yourself before opening the doors to your customers so that you can become familiar with the customer experience and ensure that you're happy with the quality of the product.. 

Here's a quick method by which you can set this up at wholesale price -

1. Setup a new Pricing Model in which your markups are set to 0 so your buying these from yourself at wholesale price. Allocate the new pricing model to the relevant Gallery

* Note - You may want to password protect this particular gallery to prevent customers having access to your Wholesale pricing model!*

2. You may need to reduce the minimum order price to allow for a few 4x6 test prints. Go to /Settings / Financial Settings to do this.

3. The PM transaction fee will apply as will the normal PayPal fee but as they are percentage based they should be small charges if you've managed to create a wholesale Pricing Model for yourself.

4. PayPal - You will have to use a friend or family member's PayPal account to pay for the order as PayPal doesn't allow for an account to 'pay money to itself'

- Done! -