I've just started to handle Google Charity Adwords for a children's charity. I think you need to treat the $10k a month as if it were real money. It can make a huge difference to your charity if you do this well. Do not be tempted to do anything Blackhat; no cpa's you could lose the grant for ever. Instead think creatively, I've signed up to Unbounce for landing pages which point to subdomains, 1 for each target area of fund raising. You can only send ad traffic to the domain that has been given the grant.
Consider an Amazon Store on the charities domain, make sure that the products are relevant to the charity and send ad traffic to a landing page with a link to the Store and some copy about the commission going to the charity. Set up the store using prosociate plugin and you will get 90 day cookies so if a visitor to your store buys a Helicopter on Amazon months later your charity gets the commission ;-)
You can also, if you are careful, sell your own services. Maybe offer to advise other charities and non profits..what you learn with your charity you can sell to others and use Google Ads to supply the leads. To stay within Ts&Cs it would need to be seen as service supplied by the charity you can do a deal with them so they get a commission from you.
There are plenty of ways to work it, leave blackhat alone for this.
