What are the materials used earmould and their casts? Is anything recyclable?

Hello, I’ve assembled some earmoulds and some of their casts (from my past) and I was thinking before throwing them away if any of those are composed of recyclable material or not.

What are your thoughts on this?
Should I even bother researching further or should I just merely throw them away?

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Hard to know. Probably silicone, and if so apparently there are places that will accept it, but I’m not sure if the bio material on the molds would impact recyclability.