Completing the crafting is only half of what she asked you to do, young Wizard. You must bring the items to her.
If you do not have the items in your backpack, you can't show her that you completed your assignment. Make sure you have the required items in your backpack (not bank, not equipped) when you talk to her again.
If you have sold, trashed, or fed these items to your pet, you can make new ones to show Eudora you completed the task.