A nice, sleek aluminum penlight from Graham Field/Lumiscope. They weigh 1 ounce each. With the emergence of ultra-bright light emitting diodes, the price of old school incandescent penlights has nowhere to go but down as they're sold as closeouts. Get them while you can! Uses 2 AAA batteries (included).
These come with a seal that has to be removed before their first use. This is to protect the battery inside from slow discharge in storage.