Help me find some kind of grey cover-up to go with this dress!

[gagamama]

Don't usually hang around in these parts, but after an ardous shopping trip on Saturday I now own this dress for a wedding next weekend.

I have some trusty (and comfy) grey sling-backs which I am wheeling out for the occasion, and a grey bag which I am also re-using (on a budget, y'see). Problem is I am having to travel for 2 hours by train there and back, so don't want to totally freeze.

I had totally lost the plot will by the time I had sourced the dress, so if anyone can recommend something cheap (under £20) which will do the job, that would be fab. I'm thinking along the lines of some kind of shrug, but worrying about whether it will look silly with the frills at the top of the dress.

I should also perhaps mention that I am size 16 with a very generous chest.

something like this appeal?

Because of the ruffles, I think I'd be tempted to go for something like this, actually

I didn't think of a blazer actually, I'd get some wear out of that anyway so doesn't matter than it's a little bit more. Thanks, there's a New Look up the road, I'll have a little look later.