I am planning the wedding for two residents at a retirement home that my mom works at. The bride is like an aunt to me, and she is letting me plan her wedding.

We'll be having the wedding at the home, with their family and the residents as guests. She's an old hippie, so I want to incorporate that into the wedding. She will be scootering down the aisle instead of walking, and he will probably be sitting, too. She has MS and he has COPD, so I will be working around their slight immobility.
Does anyone have any ideas to make this awesome?
(p.s.- her first wedding was just with the JP at the courthouse, so I want this to be special!)