Making fins

when making a fin i saw the thread about just carving into the 36 layers of cloth with a grinder. but my question is if i wanna put something inside the fin, let say a big shark tooth, how thick could it be and what kind of process would i have to do? thanks austin

when making a fin i saw the thread about just carving into the 36 layers > of cloth with a grinder. but my question is if i wanna put something > inside the fin, let say a big shark tooth, how thick could it be and what > kind of process would i have to do? austin After you do you foiling then grind a cavity deep enough for the tooth to fit into and glass it in place so that it’s lower than the foiled plane, smooth it out and go surfing. Good Surfin’, Rich