Giving Clients the Ability to Run Their Own Reports

We recently got a request from a client for a specific report. It would be so wonderful in a client had the option to run their own reports on orders they've placed. 

Ideally it would be a report by location of all inventory purchased in the last month and would include the following:

• Vendor name
• Invoice number
• Dollar amount  

This is so that the client can ensure the purchases they are recording ties back to what we show on our end as inventory purchases/adds for the month.