Several people have made wheelchair/lap quilts on this board & will be here to give you more information. I like this site with the pocket in the front. Actually, it's 2 pockets....one for your hands & a small one on top for special items. The conversation about ties was brought up recently but not sure how to find it again. It's a very nice thing that you are doing to donate to those in need.
https://www.homesewnbycarolyn.com/lovie-lap-quilts.html