I think all the needle crafts are handy:
Needlepoint Crochet Knitting Embroidery
I think that sewing and learning to make a dress, blouse, pants or how to hem your own pants is useful and most people don't know how to sew anymore.
I would also consider reaching out to organizations to see who you can bring in and then just serve as a point of contact and outreach to the community.
Previous open thread
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