#11. Cassiopeia Star Necklace
#12. Dopamine- Serotonin Ring
#13. Circle Of Willis Necklace
#14. Phylogenetic Tree
#15. Astrocyte Necklace
#16. DNA Necklace
#17. Femur Ring
#18. DNA Earrings
#19. Atom Necklace
#20. Buckminsterfullerene Necklace
Via: BoredPanda