I'd say either apply only to US schools that do not require mGRE scores, or consider looking abroad. You usually don't get funded for a masters in Europe or former British colonies (Australia, NZ, etc.) but Canadian schools might. The tuition is cheaper too.
And really, I would not send this score to any school, even if they say it's recommended. Even if you justify it by saying you didn't study, I don't think that reflects too well on you. It shows you didn't take it seriously, which they might not like.