Many young Wizards seem to get stumped on the Crafting quests when the character won't recognize you've completed the task.
Remember, crafting the items is only half of your quest, you must also bring those items you crafted back to the character that gave you the quest.
Make sure you have the crafted items in your backpack (not your bank, and not equipped) before you return to turn in the quest. You must prove that you've completed the assignment by returning the items, which will be removed from your inventory as the requirement for the quest.
Craftily yours, Eudora
When you're asked to craft something, you must return that item to receive credit for the quest!