One of my friends uses "sandwich" paper - the kind they use for wrapping burgers - for her paper piecing. She staples a bunch of them together, with a regular paper pattern on top, then runs the stack thru' her machine with no thread, and 'sews' on all the stitching lines. Voila! A set of light-weight paper piecing papers, pre-perforated, easy to tear off when you're done.
Just another option....
sue