A good percentage donations are <$20 but it adds up. If every gun owner set a monthly donation of $5-$10-$20 whatever, charged to their credit card every month, you forget its even there and it would make a huge difference to these orgs. I know its a cliche but its like a cup of coffee every month. It takes two minutes to set it up and then it happens automatically but people cant be bothered I guess.
There's aprox 500,000 LTC's in MA. If each donated $5 a month, (~$1.25/week or about $0.18/day), its adds up to $2,500,000 a MONTH. Even if everyone only gave a dollar a month, that a million every 2 months.