Okay, so we have:

-A silver bracelet with a cat's eye gem in it, which enhances night vision when worn.
-A slightly cracked necklace that extinguishes all artificial light in a room when held.

And these two are still being tossed up between for the third item, so it would be helpful to know if only one or the other is a viable option or if both are so it can be decided which one is found during the thread:
-A hairclip which makes the wearer's aura visible.
-A sword pendant which can grow into a real sword.