My pieces are made with Bits from Boxes which we all seem to keep. I'm a keen recycler so making art from things which would end up in landfill sits very well with me. I have to buy glue, paint and mirrors but try not to buy anything else and rely on things people give to me. The uniqueness of my pieces is guaranteed because I rarely have the same things twice.
The round mirrors are usually 18 diameter, and the square ones are slightly larger.