First let me clarify, this site is an information site only, and a platform where people can help each other get answers to questions regarding grants and other types of aid. We do not provide any sort of grants directly.
I don't know of specific grants for this application but there may very well be some. You might first check this article about grants for nonprofits. It explains the various places you can look for grants and the types of grants that may be available. You should also look up any organizations in your area that work with the disabled and see if they can give you some useful referrals.