These are simple to make. The hardest part is slicing & drilling the tree branch buttons, but there are plenty of places on Etsy to buy them. (And slicing & drilling them isn't really hard at all!) You could sub in vintage buttons or costume jewelry with the burlap too.
DIY Moss Planter-Terra Cotta Pots
I love all the moss covered items I've seen lately and knew I could create something rather than buying it.