Camp Half-Blood necklace bead

In Rick Riordan's Percy Jackson books, the heroes wear necklaces with one bead per year that they spend at Camp Half-Blood. We designed these beads for my daughter's vision of that necklace.

For extra fangirl credit, choose colors that are symbolic of each of the series' books or events in turn - black for the journey to Hades, sea green for Percy being claimed, etc.