Safe to Use?

[Revasius]

I have these decorative seed pods laying around from some terrariums I used to have, and was wondering if they would be safe to use in a crestie tank? No perfumes/dyes.

 

[Yoshi'smom]

I think they'll be fine. As long as there's no actual small bits that could get dislodged and accidentally ingested.
I'd boil them for a few mins just in case.