I created this to allow me to have a place to store both the paddle and my anchor pole on one side of my Fish Skiff 16. I use a transducer adapter (here) on one side of the boat that interferes with the ability to use the included paddle holders on both sides simultaneously. This version accommodates a 30mm diameter for the paddle and a 22mm diameter for the anchor pole. Other similarly sized poles may also work but are untested.
This should be printed in TPU or some other flexible material with at least 3 walls. This should reasonably keep it from taking on water and also provide enough stiffness to securely hold the poles. I used 15% infill. Both of these parameters can be changed to adjust stiffness to your preferences.
I've printed this in different orientations (on it's side and bottom down) and it does require supports. This can be challenging for TPU and will leave defects on the surface but in my testing, the parts are 100% functional which for me was all that mattered.
.step files included for modification.
The author marked this model as their own original creation.