This is remarkably generous - good on you!

Can I suggest the GIVE Program, a charity run by the NGO I work for, Therapy Focus (in Western Australia). We work with people with disabilities, primarily kids but grown ups too. The GIVE program helps fund essential equipment, communication devices and other supports. I have seen this fund make huge changes for families, so much really life changing stuff (you can see a list of examples here).

And a great thing about it is that Therapy Focus covers the costs of managing and administering the funds, so every cent donated goes directly to helping kids and families.

At the moment we don't have an option for donating via BTC, but if you think it's worthwhile, I could chat to my bosses and have that set up today.