I custom make inserts for most reptiles and amphibians, I make it all with epoxy.....a really durable plastic.
I think they would made a nice addition to habitat design....just taking it another step.
Can do so much with this stuff...... get into some real delicate looking sculpture for snakes.
Just wanted to share with you what I do...let you know there is such an item out there.
Take a visit insertswork.com I think it's cool.