Hikaru doesn't really wear a lot of accessories, so this is it. They're explained below:
1. 2 piercings on her ear. These are not present on her other ear, exclusive to her left ear.
2. The first bracelet that says Amy. This is a tribute to her best friend Bellamy, who is owned by AceTheKidd.
3. The other bracelet says M, which stands for Monty. This is a bracelet form of her slime plushie that she had as a child named Monty.