► Ruler, square and pencil for marking out. ► Coping ► Small sheet (approximately A4 size) of thin MDF or plywood; small piece of thin glass or clear plastic; small metal ring (8-15mm or so in diameter). ► Red LED,3V coin cell battery, battery holder, toggle switch (single pole, single throw), short length of electrical wire. ► Dentist's mirror, Fresnel credit-card-sized magnifier. ► Camera ball mount. ► Spray paint, glue (we used a hot-glue gun), black paint, white paint.
