This plugin has a graphical interface for creating crafting recipes. You will need to restart the server for new recipes to take effect. Also, there are commands for modifying items to make them have different names, etc.
/customcrafts
Opens custom craft GUI.
These commands will modify the item in your hand.
/ccrename <name>
Lets you set the name of an item.
/ccrrelore <name>
Lets you set the lore of the item, {line} for line breaks.
/ccrecolor <r> <g> <b>
Lets you set the color of leather armor. Values from 0-255.
/ccglowify
Makes item glow with enchant glint, without being enchanted.