You can create an incredible number of decorations for your home very cheaply using cardboard toilet paper tubes. The basic procedure is very simple, you just have to flatten each tube and cut pieces about 1 or 2 centimeters wide. These pieces will become petals or parts to create flowers. Join several of them to create a larger ornament. You can also vary the size of the petals, cutting them to make them smaller according to the design you have chosen to replicate.
Some useful ideas: