Inventories are vital part of any business and there is ever increasing demand for management system for it. If you are interested you can select this project. To understand its concept use given links :
PHP Wine Inventory Management System : phpWIMS is a complete and precise wine inventory management system with an easy-to-use PHP web interface.
Once you understand the concept of this project, you can customize it according to your need. For example basics of all the inventory systems are similar and if you want to create inventory system for product other than wine you can do it by slight modification in code.
Windows Inventory : A Computer Hardware and Software Inventory system. Based around wmi, vbscript, mysql & php. Expandable via modules to include software distribution, remote control, event viewer, disk monitoring, etc