Moose, I posted in Jan or Feb step by step instructions how to take a foam bottom weighted bobber and modify it into a FNF bobber. It takes a few minutes and sure beats paying $4 per pair for Bobs Bobbers. I can buy the normal bottom weighted bobbers for less than 50 cents per and spend no time in modifying them. All you need is an exacto knife, needle nose pliers and glue. You may do a search and find my post.