These pieces by Helena Thulin are really cool, all variations on different plants.

Here: “From the species of the genus Allium, the Allium Cepa is a biennial plant, flowering in its second growing season after midsummer. The bulb made out of Swarovski® and high quality crystals, stands out from the stem to create a this Atomium aspect. Designed and handmade in our Paris studios, the flower comes as a ring and a single earring.”

This is priced at €210. Buy something nice for the botany fancier in your life.