https://www.google.com/search?q=diy+solar+shower&client=ubuntu&hs=yqy&channel=fs&tbm=isch&tbo=u&source=univ&sa=X&ei=M_TgUtowyIHLA4TvgaAH&ved=0CDgQsAQ&biw=1280&bih=658
water pump without electricity: https://www.youtube.com/watch?v=qWqDurunnK8
http://toitoi.hr/
https://www.youtube.com/watch?v=s9gH9XAEtLU
https://www.youtube.com/watch?v=xOOUxa4_K1g
https://www.youtube.com/watch?v=Eux2Qi8rLEs
https://www.youtube.com/watch?v=9zsqjuUgfpY
https://www.youtube.com/watch?v=vcuSlaecvIw
https://www.youtube.com/watch?v=LfKgOpJc7Ps
http://www.unep.org/wed/news/foodpreservation.asp
https://www.youtube.com/watch?v=PwQxqBBut8s