Hi

How can I give a silk fabric effect on fondant? Thanks in advance.

Use petal dust to brush over it?  Or are you wanting to make a fabriclooking drape?  Explain better what you are trying to do please.

I came across this cake (pic attached). Would like to make something like this. Any tips would be appreciated :)

That looks as if its been brushed with petal dust.  Its very pretty.  I'd make the swag, then go over it with a brush.  I love petal dust!

Make sure the dust you use has a luster to it.  The Hobby Lobby brand of Pearl dust does.  Steam it carefully after you apply the dust.

@cutiger  What effect will the steam have on it?  Does that give it a smoother finish?

Thank you everyone for the suggestions. I am curious to know about steaming too ...what does it do exactly?

Steaming sets the color and brings out a bit of shine - which in this case is exactly what yoiu want ;) 

Thanks for answering...had to go out of town and didn't see her question!  Thanks again because I hate leaving people with a question not answered!

@kakeladi  Oh wow...that's awesome!!

Thank you so much everyone :) It would be my first attempt at steaming ...phew! ;-)