I had the same problem with my 1994 H-26. The cockpit table receptacle holds water, which then freezes in the winter, causing cracks and leakage into the aft berthing area. Additionally, the collar for the receptacle is cracked. Not being able to find a replacement for the cracked collar, I had an idea. I discussed it with the CAD teacher at the school where I teach and he made it a class project. He and his students took the measurements from the cracked collar that I provided him and made a highly detailed CAD rendering of the piece. He then "printed" out an exact replica of the damaged collar on their 3-D printer. The collar fits perfectly over the table receptacle hole. I then asked if he could have the students modify the drawing so that a SOLID cover could also "printed". A couple of days later, he provided me with a solid cover for the cockpit table receptacle. Again, it fit perfectly. (The filament used by the 3-D printer produces a product that is basically heavy duty PVC.) I then sewed a small cover from excess Sunbrella fabric that I had. I installed snaps around the table receptacle and on the Sunbrella cover. Finally, I sprayed the fabric cover with water repellant spray. It was an easy fix! Since the school's 3-D printer only had gray filament at the time, instead of the white that I had asked for, the CAD teacher charged me nothing for the project. He said it was great to have a real-world project for his students. So, my suggestion is to contact local schools or community colleges and see if any of their CAD teachers would like to tackle a real world project.