Chair made by bottles

materials:
-plastic bottles
-sponge
-cardboard
-tape
-cloth

First between 2 pieces of cardboard you have to put all the bottles making circle
After you tape it all together
then you cover the circle with sponge
finally you stew you favorite cloth to it and as a result you'll get a stylish chair

This is one of my favorite ideas. It is easy to make and cheaper and the quality looks the same.