You can enter a new item with a pre-populated page here
Just enter in the name of the item, the "Item:" prefix will be added automatically and a few templates will appear in the new page for you to fill out.
<createarticle>
type=createarticle
prefix=Item:
preload=Template:Item Tooltip/Preload
editintro=Boilerplate:Item
buttonlabel=Create New Item
width=20
</createarticle>