Some suggestions please ladies!

Hello ladies,

I'm in Spain on holidays - ole! Logging on to the net to try to find out what Sleazyjet have done with my luggage, as after six days it still hasn't arrived (I've been pushed off the Wardrobe Refashion wagon, which I'm not so happy about...)

When we get back I have a week to find a pattern for a dress to make to wear to a wedding on the 5th August. I have some fabulous material, which is quite gauzy, grey background with multicoloured diagonals, don't know the name of it - can anyone suggest a suitable pattern? Think it will have to be used for an overdress over a silk slip or something. The other thing is, it needs to be as easy as possible and the pattern size needs to go up to 16 UK or ideally 18 to be on the safe side!

Just thought you lovely girlies might have some ideas....

Adios!
Flib x

Thanks to Marji for her suggestion - looks great - but yes it is an obvious diagonal. Overall it's saying 1980s to me... does that count as retro? Ye gods, I think it does...