As an avid fisherman who fishes almost exclusively from a toon I can honestly say that I would not trust any of my rods to any of the rod holders listed so far in this thread. They will all work well for little fish like bluegill or crappie, but they either wont hold up to bigger fish, or in the case of plastic rod holders, will deteriorate over time and eventually break. If you are wanting to catch larger fish, or just want holders that will last as long as your boat go with all metal, heavy duty rod holders like Driftmasters, Monsters, Santees, or even the Attwood ones sold by Wallyworld. You can get clamp on bases for any of them, mount bases to your rails, or install them into a rack that can be either permanently attached, or removable. As an example, here are mine on my ole toon....
View attachment 153387
View attachment 153388