I had a NARCA 5.2 when they first came out. I ended up cutting round circles out of the bottoms of milk jugs where the plastic is a little thicker. I had a baggie of them to use and carried it in my tool pouch. I also cut circles out of thin plastic body putty squeegees, the milk jugs were always handy so I used them the most. I always had a tube of bullfrog around to protect my nose. I used some bullfrog on both sides of the plastic to lubricate it.