If you have ever dreamed of making customizations to your sea kayak you need to check out Gnarlydog's summary post of every single hack he has made to his boat over the years. You need to check it out as his site is fantastic and always a great read.
There are links on the page to articles he has written over the years highlighting his homebuilt electronic pump with magnetic on/off switch or instructions on how to build your own custom fibreglass replacement seat.
If you are scared about putting holes in your brand new kayak, just remember it’s only the first hole that really hurts (in theory).
Photo Credit: GnarlyDog News