You can add an item you wish to sell in the marketplace.
To add a sale item:
1. To navigate to the Marketplace, click on 'University' on the left hand side menu and select 'Marketplace'.
2. Click 'Sell Item' button in the top right corner on the Marketplace homepage
3. Fill in the details for the item you would like to sell and click 'Create Listing' button.
Your item will then appear in the Marketplace homepage