Cheap dress for funeral?

[TheAssassinsGuild]

That's it really. Funeral to go to in about 10 days and I don't have anything suitable for summer. Maybe navy? Dark grey? I'm 5ft 7, curvy size 8, bottom heavy.
Be very grateful for some suggestions!

Bumping??

Something like this?

Even in summer, I would usually wear something quite covered up to a funeral.

Thanks, but that's going to look to hippy on me ( as in size if his, not Flower Power).

Agree need to be covered. Everything I have that's suitable for a funeral is too thick.