If you haven't already tossed them, or aren't keeping them as a souvenir, you might want to consider donating them.
The group "Astronomers Without Borders" is collecting glasses to pass out to students for future eclipse viewing.
They'll go to students in South America and Asia when the celestial event heads their way in 20-19.
Astronomers without borders has not yet posted details about where to send the glasses yet.
But you can check their website for updates: Astronomerswithoutborders.org/
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