Yes, I've seen this before. A lady in a waiting room (my husband and hers were having day surgery) was knitting a big floor bowl using plastic bags that she cut into strips then tied them together end-to-end-to-end...rolled up a huge ball...and off she goes! The resulting bowl was quite sturdy. She had one already done at home, and it sits on the floor and holds magazines. It was a wider, shallower bowl.