My bobbin kept slipping off the pencil or stick i would have it on when hand winding the wooly nylon on to the bobbin. So i took a plastic straw and slipped my empty bobbin on it then took my lighter and ran the fire underneath one end of the straw just to get it soft and then pushed the straw down on the table and let the bobbin drop down the straw towards the table. What happens is the straw kinda spreads out a little and then the bobbin wont drop off while im hand winding the wooly nylon onto it. So when im through winding the nylon on the bobbin i slip it off the other end of the straw that i didnt burn. you can reuse the straw each time. just dont over burn it. your only holding the lighter under the straw to make it soft and plyable. your thread wont get caught on the straw either since its flush with the bobbin after reshaping the straw. I'll try to add a picture later, since im sure im clear as mud.