Have you considered preserving and sharing?
there are many ways to preserve enough for your family during the lean days so you do not have 24/7 squash.
also, I am sure there are those in your community that would welcome fresh vegetables. Try your local food banks, churches, etc.
if all else fails: a simple cardboard sign on the road with several bags of vegetables could give life to those less fortunate.
good luck and God Bless.