Friends,

I'm currently in the middle of my PCF vivarium build and I have some material questions for everyone if you don't mind.
I'm concerned about toxicity or potential leaching of toxins over time. Below is a list of stuff that I've been curious about, any help would be appreciated.

1. Plaster of Paris
2. Sculpy/polymer clay
3. Regular air dry clay
4. HDPE plastic(melted down milk jugs)

Other thoughts I've had while shopping around

Silk plants from dept. store and craft stores
Moss, sand, rocks etc. from dept stores and craft stores

"Organic" bark dust or bark nuggets from HomeDepot
Any types of wood? I'm a furniture builder and wood artist by trade, and have plenty of good looking scraps that I can use to make some cool pieces.

Thanks again for any help