We all require some extra seating in our house and for that ottomans are ideal. You can make your own ottomans too by recycling plastic bottles. To start with first you have to join plastic bottles with the help of scotch tape in a circular shape. After that cut two cardboard discs equal to the diameter of the bottle circle and put them below and on top of the bottles. Secure them at their place with plastic sheet. Then cover all the sides of this cylinder with foam sheets. Sew an inner cover for the ottoman from any fabric. Sew a top cover too and voila!
You can try a square shape too like this one. Enjoy crafting!