Craft ideas for a blind person?

Anything where the other senses are more important than sight! Hearing, Smell and Touch, Counting . Paper mache moulding - construction Modelmaking -

pottery making...as in throwing the clay on a pottery wheel and shaping.

Working with some of the polymer clays that are easily available at craft stores would be a good way to do some crafts. The most popular brand is Sculpey , or maybe Fimo. They come in different sizes, but a big block is the best way to start. I recommend this because you don't need any special tools, cleanup is easy and finished pieces can be made permanent by a low temperature baking in the oven. The texture is a bit like modeling clay and the clay needs to be worked a bit to get soft, but it allows the crafter to make very thin sheets or roll out thin or thick coils very easily. I recommend putting out a smooth piece of paper to work . Any scraps are easily gathered up and pressed back into the clay-no waste! Clay is excellent at taking texture, so try all kinds of things,like bottle caps or drinking straws, bamboo skewers, etc. Even if it's just used to fiddle with, it is very relaxing and engages the mind quickly in a creative way.

My BFF is also legally blind, but she makes the most amazing floral arrangements using faux flowers and greenery, and sells them often!

beading or clay/pottery

Crocheting or knitting, a family friend does that and she has lost 95% of her vision.