I am currently working on the Twisted Log Cabin quilt that is PP. I used vellum paper from Staples. It ran through my printer just fine. (Be sure to check the size of the copy as copiers automatically adjust the size a little - mine had to be set at 99%). And be careful that you put something down on your ironing board cover to protect it as you will want to sew on the side with the ink and when you press, that ink will stick/come off on the cover.
But good luck. I love it as I don't ever have to worry about perfect 1/4 inch seams. And cutting doesn't have to be very accurate either.