[Callers] Including Mobility Challenged Dancers

I have a private family dance gig with a church this weekend. In our touching base just now, the contact brought up a request to include *some* material that would be amenable to a couple of folks who wish to participate but have mobility issues. I'm seeking further detail from them to know the scope of the challenges but thought I'd reach out to see how others have dealt with similar situations. In my normal calling for family events, I'll often mention alternative moves for folks who don't bend as well as they used to, etc. but I'm guessing the needs here may be more significant. Do you have any particular material you'd use within an otherwise standard family/community dance context to suit mobility challenges? I know there are things like the seated squares session at NEFFA but am hoping for material that wouldn't require rearranging the furniture, etc. between selections. Thanks! Don