If OP is selling via Shapeways, it's printed and shipped by Shapeways in the user's choice of material. From the link, it looks like the only option for this one is Nylon, but that's about the strongest plastic you can get for things like gears.
I think sellers may be able to limit the materials to known working ones (each material has it's own requirements).
was it to save money? or for some unique design?
https://photos.google.com/share/AF1QipMECi57zKtD6arv_-sL83gp...
> is there any way to scan it from your phone and hear it?
It's not detailed enough for that, though you can tell the cadence and reliably guess at the number of words. If you know what we said, and only we do, then you can see it.