I made mine last night from card stock (I think that's what it is called), DH bought some off cuts from a picture framers a few yrs ago. I made several different sizes.
I don't have the big clips so all I did was stick a dressmakers pin in the centre, remove from template, position ribbon, then 'weaved' the needle & thread through the ribbon. Gathered the ribbon, wrapped thread around the centre a few times and stitched it off.
Didn't turn out too bad for a 1st try. Will post a pic when I take it and work out the 'how-to's' of attaching it