Human hair

Human hair

Pine tree

Pine tree

Biobitumen

Biobitumen

Hemp, Tobacco, Grape leftover

Hemp, Tobacco, Grape leftover

Cow intestine

Cow intestine

Lithoplast

Lithoplast

Scoby leather

Scoby leather

Coconut husk

Coconut husk

Mycelium

Mycelium

Composite

Composite

Blood, fat, bone

Blood, fat, bone