[Elecraft] Recycling replaced parts/boards?

[ericrosenberg.dc at gmail.com]

I've replaced to two synthesizer boards in my K3. 

 

Is there a way (or does Elecraft provide a service) to recycle them, as I'm
sure they have no value? 

 

I don't want to simply throw them into the landfill. 

 

Thanks, 

Eric W3DQ