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?
Fire stations usually hold biker down courses which involve the proper way to remove a helmet if absolutely necessary. You could try there