Charities That Need Used Helmets

I have a couple of used helmets that I want to give to a needy charity.

They are about 8 years old but are in good condition

Suggestions in the main seem to be to give them to Ambulance/firefighter services to aid training in motorcycle accidents.
I did read somewhere that there are some military veteran biker schools that needed them at some point but cant find it now

What do you do with your old helmets?