Find me outfit for a wedding

[Rizzledizzle]

I am Size 16/18 and need to get an outfit for a wedding in a fortnight. Ideally looking something from eBay as I will probably only wear it once. I would prefer to have my arms covered and would like it to be quite funky - coloured instead of plain. I am 5ft8 with auburn shoulder length hair. Not feeling great about things at the moment so would like an outfit that will hopefully make me feel happy!

Five Pound Dress (not sure about quality, not ordered from them before, but colour is good for you)

Wiggle dresses any good? There are other prints on the John Lewis website

Love this one and really easy to accessorise

Interesting print but no sleeves

That FivePound site looks incredible! Have you ever ordered something from there before? What is the quality like?
I like the first dress but would like something that also hides my tummy - maybe something flary. Something that I don't feel self conscious in.