[Callers] Signed calls?

I recently had a conversation with a dear friend in NH, a long-time contra dancer, who has an adult daughter who is deaf (who lives in SF, CA if that helps). Daughter doesn't dance, because she can't hear the calls and gets confused on the dance floor. She wishes that, during walk-throughs, the calls could be signed as well as spoken. I'm writing to ask if any of you have encountered this request? AFAIK there are no deaf dancers in my community in the Maine highlands, but I'd be willing to learn some basic signs to go along with my teaching. I think it would be challenging to sign as I call once the dance gets started, though. Thoughts? Allison Aldrich Smith -- www.huntandallison.net www.info@thsmaritime.com www.centralhallcommons.org