No, I don't enjoy pain and frustration that much. I get large 22 inch by 30 inch sheets and cut them down to size (do a search for 'Zerkall Book Smooth' if you want the exact material). I cut out four 10x14 pieces per sheet, which gives me one signature. A signature consists of four sheets of paper stacked, then folded in half to make a little booklet. That yields 16 pages. Then the signatures are sewn together during the binding process.

Edit to add: I would have loved to use real parchment for a more authentic end product, but that amount of parchment would have cost thousands of dollars.