I too, have been fabricating articles that I could design for my particular needs. My camino will begin in May 2014, and I will be traveling from Texas. I have made a sleeping sack that is a convertable version. If it is cold, I wrap up in a polar fleece blanket in the sack. If it is warm, I flip the sack over and sleep with just the microfiber sheet covering me. Also have read horror stories about bed bugs. As one of bugs find to feed upon, I want to take every precaution to escape the nasty little critters. I have fabricated a micro fiber sack to encompass my pack. I can seal it up, and will treat it with the bug killer I bought from REI that is supposed to take care of bed bugs and all the rest too. The sack will also be used to surround my pack for the ride to and from Spain. It will be sent through as luggage, and I will feel more secure knowing that it is bound up, and as safe as I can make it. So far that is all I have designed, but I still have 7 months, and I get lots of ideas during my training walks. Very excited about walking The Way, and meeting the wonderful people I have read about on the forum. Beun camino Kimbo