donate $1,000 anonymously to a missionary/other good cause

I’m collecting my loose change and have designated each type of coin for a different thing that I have trouble spending money on. Dimes will be my “mission fund”. Every dime I get will be put in its own separate fund that I can ONLY spend by giving it away to a missionary/church. Right now, there’s roughly $10-15 in the fund (can’t remember exactly).

I give $50 to my church every Sunday, and I send my former roommate (now a missionary) $45 each month, but I’d love to be at the point financially where I can just give someone in need $1,000 in one pop. It won’t happen any time soon, but I want it up there for me to see to keep my from getting greedy since I tend to be really tight with money.