Moe:
Everything has its uses, even junk. Rebuilding ruins takes all kinds of materials, you know. One's trash is another's treasure, right? Tell you what, you bring me junk and I'll give you a Fortune Treasure Chest. Win for you, win for me...plus a tiny transaction fee.
You might have some in your inventory right now. Don't you have common materials Lv. 1-3, or some crystals?
You don't like the pendant option on hair accessories? Then what about sealing it? You can craft a new pendant with a sealed pendant. For more information, talk to any maestro.