I had the same dilema last year with one of my traps. The only place i could find that had anything was Fish307.com. I dont think that they sell just the plug but they do sell the whole flag assembly and i think its around 6 or 7 dollars. The guy had an extra one of the plugs kickin around so he sent it to me for no charge so you might want to check it out and give them a call. Hope this helps and cant wait to get out on the ice with you and Jrelaxin. Until the water freezes
take er easy
Tim