I have been making them for years, and they work so much better then the pre-lubed patches you can buy. I go to Wal Mart and get a yard of 100% cotton pillow tick (blue stripe). This is about .015 thickness and cost a little over $3.00. I then get some water soluable oil from an auto parts store and mix it 1 part oil to 4 parts water (in the summer and 1/5 in the winter) in a jar. I cut the pillow tick in to 2 inch strips (I like them extra wide) and put that in the jar of solution. Shake the devil out of it and let it sit until the cloth is saturated. I then pull the strip out, ring the excess solution out of the cloth and let it air dry over a piece of screen, so it dry evenly from both sides. This is then left in the long strips which you later will roll up and put in a zip lock bag. All you do is seat your ball, and cut the excess off the top of the muzzle and you have a perfect seated ball everytime. Really makes a difference in the accuracy, and is a lot cheaper then buying the pre made that always want to side to one side or the other then you try and set your ball.