A little background...
My mom specifically told me that she doesn't want a corsage, so I don't want to give FMIL one and not have my mom have one. I know FMIL would be sad if we didn't do something special for her, and while my mom isn't into that stuff at all I think it would be nice to acknowledge her in some way anyways. Unfortunately, my mom is really shy and hates anything that singles her out, especially getting up in front of people. I want it to be special, but not embarrassing for her. 
I'd like to do something for them during out unity ceremony, we're doing a sand ceremony. I was thinking that maybe would could walk down to where our moms are sitting and present each of them with a flower. I'm just not exactly sure how to fit it in. If anyone has some suggestions or any other creative ideas that would be great!