help please




Hi guys
I bought this beautiful velvet skirt from a thrift shop but it is waaaaay too tight, like 3 inchs too tight!
I am in love with the material so want to refashion it but am not sure how.
I dont like super short skirts so dont really want to chop it and reposition waist band.
Any ideas?
It is 8 gore, each gore has about a 5/8 inch seam.
It doesnt have any extra on the hem or the waistband seam.
Thanks heaps