EVA foam mats. These can be had cheap - if you have a Harbor Freight nearby, you can get a 4 pack for around $10. I traced my seat bottom and cut it out with a utility knife. I doubled the thickness of the seat and increased the comfort factor. It weighs next to nothing, water/moisture does not affect it and it lasts for years. Any adhesive will do, I used clear silicone caulk and weighed it with a sand bag overnight until it cured. Use some left over material and cut a rectangular strip. Glue it within reach of you when seated - you can store hooks, jigs, baits, etc. in it instead of reaching for your tackle bag every time. You can bury a hook past the barb in it and it still is easy to get it out. Again, it will last several seasons. Mine has about 1000 holes in it and still works great. Better than exposed hooks in a cramped area.
Scupper plugs. More fun with foam
Foam practice golf balls make for great scupper plugs. Pierce them with an awl or a thin screwdriver. Thread a shoelace through, tie a knot and pull the knot tight against the ball. I sealed the knot/ball area with some automotive silicone sealant I had lying around. I tie the loose end off close by the scupper so there is no chance of losing it. I've read of others using a pool noodle to make them, but all of the ones around here are hollow down the center and the foam is not as dense as the golf balls. Either will work.
I'm throwing this anchor trolley diagram up for those who may not be familiar with them. Pretty self explanatory, too many rigging variables to go into detail.
Last thing I'll throw out there. If anyone has a crack and is going to repair it themselves, I have a large coil of clear polyethylene 1/8" dia. I had to repair mine a few years back and bought a one pound roll not realizing just how much that is (I could probably make half of another kayak) ... I'll gladly send a couple of feet of it to you for nothing (as long as you live in the US)
