I have a whole tub of ties that I want to make a quilt out of also and haven't done anything with them yet. LOL So really can't give too much advice on it. I did purchase a book "Daddy's Ties", but haven't read that yet either! LOL Getting prepared!! :-D
One thing I do know though is when sewing with silk - use some sort of tissue paper (kleenex, toilet paper, etc) to sew over as silk is a slippery little bugger and it'll help with the feeding of it.