The 3D printed mountains are made from a bioplastic called PLA which stands for Polylactic Acid. PLA is odourless and non-toxic which makes it ideal for working with.
It is also food safe and commonly made from maize and sugarcane (But not edible, believe me).
PLA is not widely used as it has a higher production cost than crude oil based plastics, but I feel It's worth it for the sake of our planet.
Oh and 3D printing is an additive manufacturing process, which results in very little waste.
The variety of wood used for the bases are all native to Scotland. They mainly consist of spalted beech and wood burrs.
Spalted beech has black lines flowing through the wood and is a result of natural processes, it is safe to handle and keep in the house.
Wood burrs are small branches starting to grow in the side of the tree. Over time those branches will combine and grow as one.
The bases I usually use are off cuts from a professional wood worker who cant find a use for them which means every wooden base has it's own unique quirks and qualities.
All the wood bases are finished using Danish oil which is a non-toxic, food safe, all natural wood finishing oil which gives it a beautiful finish.
It also smells great.