I'll try to keep this short

I'm a November bride, but I really like shorter BM dresses (knee length) so I checked with my girls to make sure they were cool with that and they were. So we went and bought the dresses, the 2 BM's have small spaghetti straps/knee lenght and my MOH is strapless/knee length.
We are having a church wedding, I did check and strapless dresses are acceptable. However, my mother and grandmother are having a fit about the BMs being in strapless in the church, being cold in November for outside pictures. I did ask the girls their opinions and everyone agreed that they can suck it up for a few outdoor pictures.
But I was thinking of just seeing if I could find some cute shawls or wraps for them to wear if they choose to (I will obviously buy them since it's just an accessory) I've done some looking online and I can't find anything that matches the look I'm going for. Does anyone have any ideas on where I can find something like this?
Thanks in advance!