Abstract: In order to prepare stained glass chips so that they can be assembled together into a stained glass window or other work, the edges of the chips are wrapped with foil. This foil is dispensed from a roll along a path to a wrapping roller. The roller has a groove with a step and defines portions of different widths to accommodate stained glass chips and foil of different widths. The size of the groove portions are wider than the chips so that the foil will wrap around the edges of the chip and be pushed into contact with the side of the chip lying adjacent to its edges when the chip is pressed against the groove portions. Rotation of the chip also rotates the wrapping roller which is mounted so as to be free to rotate. This pulls the foil being applied to the chip.