I had no idea what a marimo was until my little sister received one as an early birthday present.
I have such an inexplicable desire to have one.
A rare type of free growing algae, they retain their round shape by being tossed by waves, and when heavily oxygenated they float.
Etsy is telling me this is clearly not a new thing, but it’s new to me.
image from this cute Etsy shop that sells the little guys