Does he or she collect lures or flies? Maybe you can design a multi-tier stand with places to display lures or flies? Most fisherman have a landing net. While the net itself isn't a "turning" project, you could maybe get a net and turn a fancy handle with different kinds of accent wood. Then cut off the existing handle and replace it with the fancy one you turned. It becomes a custom made net. If they have multiple rods, you could turn two round plates with holes / slots for rods. Then mount the plates on a long rod or rods to make a floor standing rod storage rack.