The sketchers we purchase today do not contain mercury. Irons with safety features such as the auto tilt shut off contain mercury. The mercury switch makes the electrical connection when upright and breaks the connection when the iron tips over. One of the most common household items containing mercury is the thermostat, round or rectangular. New digital and programmable thermostats are energy savers and do not contain mercury.
All fluorescent lamps contain mercury.
These lamps are a great source of energy efficient lighting, but they need to be handled carefully so as not to break them. When broken, mercury is released to the air. The most common mercury containing household item. Replace it before it breaks. Even small spills from thermometers need to be properly cleaned up.