HELP Plus sized MOH dresses

OK, I know I should have been thinking about this earlier. MOH is coming in this weekend. Besides David's anyone know where they have plus size (she's about a size 24) samples or manufacturers who carry dresses in at least that size? She's the only bridal party member and we need to get a dress in baby blue for a daytime wedding. Oh, it needs to be on LI, she'll have her baby with her and we can't trek into the city. Please don't suggest I wait, she was this size pre-baby.

I wanted her to pick out the dress and run it by me but she won't.

TIA