Most of my mosaics are made with old household items that served their purpose and then became worn-out and unwanted. I clean each find, hand-cut each stained glass piece, grout the mosaic and then seal it.
I use recycled stained glass scrap, broken china, buttons, pebbles to create the mosaic. The refurbished mosaic base will have time-imposed imperfections, but that only adds character and uniqueness to my glass creations. Intentional imperfection!